Answer:
~Y/n here~ I believe the answer will be that if the relationship between two quantities is a proportional relationship, this relationship can be represented by the graph of a straight line through the origin with a slope equal to the unit rate.
(Hope this helps!)
The expression for thrice of a number m is m +3. true or false
Answer:
False
Step-by-step explanation:
[tex]the \: expression \: is \: 3x[/tex]
Answer:
false
Step-by-step explanation:
thrice a number means 3 times the number
if the number is m then thrice the number is
3 × m = 3m
Item 1
The Diamond Rule says two factors, m and n, must multiply to get to the top number and add to get to the bottom number.
What are the possible values for m and n?
9 and 4
-9 and 4
6 and 6
-6 and -6
-6 and 6
-9 and -4
The diamond rule creates a system of equation for variables m and n
The possible values of m and n are 8 and 4 or 4 and 8
How to determine the possible values of m and n.The question is incomplete; so I will make use of the attached figure
When the diamond rule is applied to the figure, we have the following equations
[tex]mn = 32[/tex]
[tex]m + n = 12[/tex]
Make n the subject, in the second equation
[tex]n = 12 - m[/tex]
The first equation becomes
[tex](12 - m)m = 32[/tex]
Expand
[tex]12m - m^2 = 32[/tex]
Rewrite as:
[tex]-m^2 + 12m - 32 = 0[/tex]
Multiply through by -1
[tex]m^2 - 12m + 32 = 0[/tex]
Expand
[tex]m^2 - 4m - 8m + 32 = 0[/tex]
Factorize
[tex]m(m - 4) - 8(m - 4) = 0[/tex]
Factorize
[tex](m - 8)(m - 4) = 0[/tex]
Solve for m
m = 8 or m = 4
Recall that:
[tex]n = 12 - m[/tex]
So, we have:
n = 12 - 8 or n = 12 - 4
Solve
n = 4 or n = 8
Hence, the possible values of m and n are 8 and 4 or 4 and 8 (using the attached figure)
Read more about equations at:
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A fair die is rolled 3 times what is the probability that is comes up 1 at least Once
Teresa has lived one-fourth of her life in England, one-fifth in Ireland, one-third in France and 13 years in
Switzerland. Assuming she lived in no other countries, how many years old is she?
Will give BRAINLIST
Answer:
She is 60 years old
Step-by-step explanation:
The first thing we can do is convert each fraction to have a common denominator. The LCM of 5, 3, and 4 is 60.
[tex]\frac{1}{4} =\frac{15}{60}[/tex]
[tex]\frac{1}{3} =\frac{20}{60}[/tex]
[tex]\frac{1}{5} =\frac{12}{60}[/tex]
Add the numerators:
[tex]15+12+20=47/60[/tex]
Meaning that the time she lived in Switzerland is the remaining 13/60, and since she lived there for 13 years that means she lived for a total of 60 years because the numerator and denominator both equal 60.
#LearnWithBrainly
Answer:
Teresa is 60 years old------------------------------
Let the age of Teresa be x.
Set up equation:
x(1/4 + 1/5 + 1/3) + 13 = xMultiply both sides by 3*4*5 = 60 to clear fraction:
x(60/4 + 60/5 + 60/3) + 13*60 = 60xx(15 + 12 + 20) + 780 = 60x47x + 780 = 60x60x - 47x = 78013x = 780x = 780/13x = 60At a high school football game, the amount of concession items sold over the first 5 weeks of the season is shown below.
Based on the quantity of the various items sold at the concession stand, the items that show a linear relationship include:
Hot dogs.Nachos. Why are these items showing a linear relationship?Items that show a linear relationship are those that are either increasing or decreasing by the same amount overtime.
Change in Hotdogs:
= 142 - 131 = 120 - 109
= 11 = 11
Hotdogs are changing by the same amount.
Change in Soft drinks:
= 161 - 154 = 147 - 133
= 7 = 14
Change in Pretzels
= 96 - 64 = 120 - 112
= 32 = 8
Change in Nachos:
= 111 - 97 = 153 - 139
= 14 = 14
Therefore, the only items that are linear are the Hotdogs and Nachos.
Find out more on linear relationships at https://brainly.com/question/837754.
ITSS EASY PLEASE HELPP
i) 15 students
ii) 15 students
When we factor this equation the correct answer would be "-2x(7 + 6x)". But why would "2x(-7-6x)" be wrong?
Step-by-step explanation:
Although it is right,
The rule is that we stop factoring, if we can't factor out a constant that isn't 1.
In your example, we can still factor out-1.
The factorization 2x(-7-6x) is not wrong because distributing the outer 2x to each term inside gets us
2x times -7 = -14x2x times -6x = -12x^2which leads back to -14x-12x^2
Therefore, 2x(-7-6x) = -14x - 12x^2 is true.
Convention usually has us pull out the negative so the terms inside are all positive. This is just a practice done. There technically isn't any right way vs wrong way to factor, when we compare the two different factorizations. I think it's more of a subjective style than anything.
MATH QUESTION SCREEN SHOT DOWN BELOW BRAINLIEST!
look at screen shoot
Answer:
3/5
108
Step-by-step explanation:
Let there are 3x goldfish, then 2x belta fish
total 3x + 2x = 5x fish
so 3x/5x = 3/5 are goldfish.
total fish = 5x = 180, so x = 180/5 = 36
The store has 3x = 3*36 = 108 goldfish.
the following shape has 1 pair of parallel sides. 3, 5, 8, 2, 6
To identify the shape with one pair of parallel sides, we need to consider the given set of numbers: 3, 5, 8, 2, 6.
A shape with one pair of parallel sides is a trapezoid. In a trapezoid, two sides are parallel while the other two sides are non-parallel.
Looking at the given set of numbers, we can form the sides of a trapezoid by pairing the numbers in the following way: 3, 5, 8, 2, 6.
The sides of the trapezoid can be represented as follows:
Parallel sides: 3 and 5 (forming the top and bottom sides)
Non-parallel sides: 8, 2, 6 (forming the slanted sides)
Therefore, the given set of numbers forms a trapezoid with one pair of parallel sides.
For such more question on trapezoid
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The final question on Walter's science exam was an essay question. Walter's essay
was 175 words long. This was 5 times more words than the minimum number of
required words. Which equation can be used to find n, the minimum number of
required words?
A 5 + n = 175
B 5 x 175 = n
C 175 - 5 = n
D5n = 175
Answer:
D
Step-by-step explanation:
If n=minimum number of required words and the essay is 175 words long which is 5 times more words than the minimum number of required words, you multiply n with 5 and equate to 175. To get n, you divide 175 with 5(175/5) which is 35 words.
Expand. (1-4m)(m^2-3m+8) your answer should be a polynomial in standard form.
Answer:
13m²−35m+8−4m³
Step-by-step explanation:
Expand (1 − 4m)(m² − 3m + 8) by multiplying each term in the first expression by each term in the second expression.
1m² + 1 (−3m) + 1 ⋅ 8 − 4m ⋅ m² − 4m (−3m) − 4m ⋅ 8
Simplify terms.
13m²−35m+8−4m³
Solve the following system of equations by substitution or elimination. Enter your answer as (x,y).
-3x-y - 1
-2x+2y = 10
Add Work
> Next Question
Answer:
2x + 3y = 12 …equation 1
x– y = 1 … equation 2
To solve it by elimination method, let us multiply the second equation by 3
3x — 3y = 3 …equation 3
Now add the first and third equation
5x = 15
x = 3
From equation 2, y = x-1
y = 2
Hence x = 3, y = 2.
(b) 3x + y = 10
Since we have one equation and 2 variables, it cannot be solved by the elimination method.
To solve this, we can go for trial and error
Say y = 1, x = 3 or x = 5, y = —5
(c) x – 3y=1 …eq 1
3x – 2y + 4 = 0 …eq 2
Multiply eq 1 by 3, 3x — 9y = 3 …eq 3
Eq 2 — eq 3,
7y = —7
y = —1, x = —2 Ans
Hope it helps!!!!!!!brainliest pls!!!!!!!!!!!Find the equation for the line that passes through the points (-4,1) and(2,+3)
line S is y=1/3x-3 and line T is y=-x+5. How do I graph the solutions?
Answer:
#1) A
#2) B
#3) C
#5) A
#7) D
#10) D
#11) D
#14) A
#15) D
#16) A
#19) D
Step-by-step explanation:
#1) If the data set is linear, the slope will be constant throughout the entire data set. For data set A, the slope between the first two points is:
m = (y₂-y₁)/(x₂-x₁) = (1--2)/(3-1) = 3/2
Between the second two points,
m=(4-1)/(5-3) = 3/2
Between the third pairs of points,
m=(7-4)/(7-5) = 3/2
The slope is constant throughout the entire set. The set is also increasing; as x increases, y increases as well.
#2) Substituting 4 for y and 1 for x,
y = (x+1)²
4 = (1+1)² = 2²
9 = (1+2)² = 3²
16 = (1+3)² = 4²
This works for each point, so this is the solution.
#3) Since he runs 10 laps per hour t, this is 10t. Adding the first lap to this, we get y=10t+1.
#5) If a sequence is arithmetic, each term is found by adding a constant (called the common difference) to the previous term. If the common difference is 2, this means that 2 was added each time. This only works for choice A.
#7) For x to vary directly as y, this means that y/x = k; in other words, the quotient of y and x is constant for every point.
#10) The formula for slope is:
m=(y₂-y₁)/(x₂-x₁)
Using the information we're given, we have
3=(d-5)/(4-2)
3=(d-5)/2
Multiply both sides by 2:
3*2 = ((d-5)/2)*2
6 = d-5
Add 5 to both sides:
6+5 = d-5+5
11 = d
#11) Using point slope form,
y-y₁ = m(x-x₁)
y-1 = 3(x--2)
y-1 = 3(x+2)
Using the distributive property,
y-1 = 3*x + 3*2
y-1 = 3x + 6
Add 1 to both sides:
y-1+1 = 3x+6+1
y=3x+7
#14) If two lines are parallel, they have the same slope. The slope of the given equation is 4; the only one with a slope of 4 is A.
#15) If two lines are perpendicular, they have slopes that are negative reciprocals (opposite signs and flipped). The slope of the given equation is 2; this means the slope of the perpendicular line would be -1/2. The only one with this slope is D.
#16) The two equations are not the same, so there are not infinitely many solutions. The variables do not both cancel, so there is at least one solution. This only leaves one solution as the answer.
#19) Using 1 for 7 and 4 for x, we check each equation. The only one that comes out correct is D.
i hope this work for you
and sory if im wrang
How many 1/4 inches are in 2 inches? Draw a diagram to demonstrate your answer.
Answer:
8
Multiply 0.25 by 8 ⇒ 2 [tex]in.[/tex]
I hope this helps!
The graph below represents the relationship between the number of days a book is overdue and the library fine charged. A graph titled Library Fines. The horizontal axis shows days overdue and the vertical axis shows the fine (dollars). The line shows an increase to $10 at 19 days overdue, then constant. Christen returned an overdue book to the library. Her fine was the same as it would have been if she returned the book the previous day. Which of the answer choices below could be the number of days Christen’s book is overdue? 10 14 18 22
Answer:
(d) 22
Step-by-step explanation:
For numbers of days above 19, the fine is constant. The answer choice that is above 19 is 22. For 22 days overdue, the fine will be the same as for 21 days overdue: $10.
22 could be the number of days
Answer:
D. 22
Step-by-step explanation:
In Diagram 5, POQ is the diameter of the circle with centre O .Find the area, in cm², of the shaded region. Use 22/7
Answer:
B) 236.25
Step-by-step explanation:
POQ is a diameter of circle with centre O having diameter 21 cm. Whereas radius is 21/2 cm (as radius is considered as half of the diameter).
Assume that the tip of the triangle that touches the circle is point 'N'. So,
NO = radius = 21/2 cm
At present time we have a triangle of radius or height 21/2 cm, base 21 cm is enclosed in circle of diameter 21 cm. And are asked to find the area of the remaining region or you can say asked to find area of the shaded region.
Shaded region = Area of Circle - Area of Triangle
= πr² - 1/2 × b × h
= 22/7 × 21/2 × 21/2 - 1/2 × 21 × 21/2
= 21/2 × 1/2 [ 22/7 × 21 - 21 ]
= 21/4 [ 22 × 3 - 21 ]
= 21/4 [ 66 - 21 ]
= 21/4 [ 45 ]
= 21 × 11.25
= 236.25
Hence, the area of the shaded region is 236.25 cm².
solve the system substitution y= 4x + 1 and 3x+2y =13
Given :
[tex]{\qquad \sf \dashrightarrow y= 4x + 1 \: –––– \sf \: (i)}[/tex]
[tex]{\qquad \sf \dashrightarrow 3x + 2y = 13 \: –––– \sf \: (ii)}[/tex]
Now, Substituing the value of y in equation (ii) :
[tex]{\qquad \sf \dashrightarrow \: 3x + 2y = 13 }[/tex]
[tex]{\qquad \sf \dashrightarrow \: 3x + 2(4x + 1) = 13 }[/tex]
[tex]{\qquad \sf \dashrightarrow \: 3x + 8x + 2 = 13 }[/tex]
[tex]{\qquad \sf \dashrightarrow \: 11x + 2 = 13 }[/tex]
[tex]{\qquad \sf \dashrightarrow \: 11x = 13 - 2 }[/tex]
[tex]{\qquad \sf \dashrightarrow \: 11x = 11 }[/tex]
[tex]{\qquad \sf \dashrightarrow \: x = \dfrac{11}{11} }[/tex]
[tex]{\qquad \sf \dashrightarrow \bf \: x = 1 }[/tex]
Now, substituting the value of x in equation (i) :
[tex]{\qquad \sf \dashrightarrow y= 4x + 1}[/tex]
[tex]{\qquad \sf \dashrightarrow y= 4(1) + 1}[/tex]
[tex]{\qquad \sf \dashrightarrow y= 4 + 1}[/tex]
[tex]{\qquad \bf \dashrightarrow y= 5}[/tex]
....pleaseee....helpppppp................
Answer:
16 ounces
Step-by-step explanation:
one pound is sixteen ounces
feeding trough is in the shape of a
right triangular prism. The triangular end
of the trough measures 3 ft across and
1
is 1 4 it deep. The feeding trough is 40
feet long. How much cattle feed can the
trough hold?
Step-by-step explanation:
1 1/4
is also 5/4
5/4 * 3 * 1/2 * 40 =
answer in comments
please mark as brainest
Do you guys know what 4m - 2m + 3
Answer:
2m + 3 I think.
Step-by-step explanation:
4m - 2m = 2m. So just put that in the equation now and poof. 2m + 3
Wendy bought an $80 dress on sale for 40% off. How much did she pay for the dress?
Solution:
We know that:
Discounted price: Original price - (Original price × Discount)Original cost of dress: $80Discount: 40%This means that:
Discounted price of dress: 80 - (80 × 40%)Step-1: Convert "40%" into a fraction.
40% = 40/100Step-2: Find the discounted price.
Discounted price of dress: 80 - (80 × 40/100)Discounted price of dress: 80 - (4 × 40/5)Discounted price of dress: 80 - (4 × 8)Discounted price of dress: 80 - 32Discounted price of dress: $48Solve for x. Leave your answer in simplest radical form.
Answer:[tex]2\sqrt{3}[/tex]
Step-by-step explanation:
Use pytha. theorem on leftmost triangle and get sqrt(13)
Use it again on the other triangle: 13+b^2=25
First, we find the hypotenuse of the first triangle
(Use the pythagorean theorem) : [tex]3^{2} + 2^{2} = 9 + 4 = 13[/tex]
So, the length of the side = [tex]\sqrt{13}[/tex]
Now, we find x :
x(squared) = [tex]5^{2} -\sqrt{13} ^{2}[/tex] = 25 - 13 = 12
-> x = [tex]\sqrt{12}[/tex] = 2[tex]\sqrt{3}[/tex]
How do you solve the picture AND DO NOT TELL ME YOU DO NOT KNOW lol
I don't know use a calculator
You are buying carpet to cover a room that measures 42 ft by 42 ft. The carpet cost $ 25 per square yard. How much will the carpet cost?
Explanation:
3 feet = 1 yard
14*(3 feet) = 14*(1 yard) .... multiply both sides by 14
42 feet = 14 yards
The carpet is 14 yards by 14 yards.
Its area is 14*14 = 196 square yards.
Since it costs $25 per square yard, this means the total cost is 25*196 = 4900 dollars
Please show work and thanks
Answer:
2
Step-by-step explanation:
If ABC is equilateral, its angles are all equal to each other and each one measures 60°.
[tex]8x-44 =60\\8x = 16 \rightarrow x = 2[/tex]
Find the measure of angle DGE
Answer:
40°
Step-by-step explanation:
m∠DGE = mDE/2 = 80/2 = 40°
Find the total area of the irregular polygon shown? * m 11 m 36 sqm 84 sq.m 88 sqm
Answer:
100
Step-by-step explanation:
Split it into 3 different rectangles, find the area of each, and add them together.
Rectangle 1: length=11 width=4 11×4=44
Rectangle 2: length=11-9=2 width=6 2×6=12
Rectangle 3: length=11 width=4 11×4=44
44+12+44=100
Magan decides to research the relationship between the length in inches and the
weight of a certain species of catfish. He measures the length and weight of a number
of specimens he catches, then throws back into the water. After plotting all his data,
he draws a line of best fit. Based on the line of best fit, what would you predict to be
the length of a catfish that weighed 40 pounds?
Based on the line of best fit, the length of this catfish can be predicted to be 38 inches.
Given the following data:
Weight of catfish, x = 40 pounds.What is a line of best fit?A line of best fit is also referred to as a trend line and it can be defined as a statistical (analytical) tool that is used in conjunction with a scatter plot, in order to determine whether or not there's any correlation between a data.
From the graph of the data, we have the following linear equation:
[tex]y=\frac{1}{2} x+18[/tex]
Substituting the value of x, we have:
[tex]y=(\frac{1}{2} \times 40 )+18\\\\y=20+18[/tex]
y = 38 inches.
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