Answer:
x = 3
Step-by-step explanation:
3(10-x)=21
30-3x=21
-30 -30
-3x=-9
x=3
What is this??? [tex]\frac{7}{15}[/tex] minus [tex]\frac{8}{9}[/tex]
Answer:
-19/45
Step-by-step explanation:
7/15 - 8/9
= 21/45 - 40/45
= -19/45
A local pet store buys cans of dog food for $0.43. They sell them for 65% more for profit. If a customer buys 14 cans of dog food, how much will it cost? (Please provide a simple explanation if possible.)
Answer:
$9.94
Step-by-step explanation:
.43¢= 1 can
65% markup can be done by .43 + (.43×.65)
that equals .71¢ for 1 can after the markup.
multiply .71× 14 = $9.94
Can anyone pls help. If in you don't know pls don't answer it there is some people doing it to me pls don't I just need help with this last problem.
Answer:
2500m2
Step-by-step explanation:
A square has four sides and the area is 10,000 m^2. Area is determined by multiplying two sides. In this case, you can divide by two to get 5000, then again by 2 to get 2500. Each side/dimensions are 2500m^2
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Which situation is best represented by this equation?
35 + 4x = 47
a)Lindsey spent a total of $47 on new pens and mechanical pencils. She bought 4 pens and 35 pencils. The pens and pencils were the same price. What is x, the price of each pen and pencil?
b)Lindsey spent a total of $47 at the grocery store. She bought a bottle of shampoo for $4 and some containers of baby formula for $35 each. What is x, the number of containers of baby formula bought at the grocery store?
c)Lindsey spent a total of $47 on her mother for her birthday. She bought a $35 box of chocolates and some balloons for $4 each. What is x, the number of balloons that Lindsey bought for her mother's birthday?
d)Lindsey spent a total of $47 from her allowance and $35 earned from mowing lawns on rides at the carnival. Each ride costs $4. What is x, the number of rides Lindsey rode at the carnival?
Answer: C) Lindsey spent a total of $47 on her mother for her birthday. She bought a $35 box of chocolates and some balloons for $4 each. What is x, the number of balloons that Lindsey bought for her mother's birthday?
Step-by-step explanation:
The situation c) Lindsey spent a total of $47 on her mother for her birthday. She bought a $35 box of chocolates and some balloons for $4 each. What is x, the number of balloons that Lindsey bought for her mother's birthday?
is best represented by this equation 35 + 4x = 47.
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
Given, An expression 35 + 4x = 47.
Lindsey spent a total of $47 on her mother for her birthday. She bought a $35 box of chocolates and some balloons for $4 each. What is x, the number of balloons that Lindsey bought for her mother's birthday?
As $35 box is constant and she bought one and we can denote the no. of balloons to be 'x' which cost $4 each and the sum of these two is 47.
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help me if u can and thank you :)
Answer:
320km = 12L
296 km = xL
x = (296 × 12)/320
x = 11.1 liters
Find the missing number of the unit rate.
6/2 = ?/1
Answer:
3/1
Step-by-step explanation:
6/2
2 + 2 = 4 + 2 = 6
LWQJD89y3284723923189f9m
Answer:
3/1
Step-by-step explanation:
The first step is to line the numbers up side by side:
6 =
2 = 1
SInce we know that 2 divided by 2 = 1, we divide 6 by 2, which gets us 3.
6 ÷ 2 = 3
2 ÷ 2 = 1
Remember, you must divide the numerator and the denominator by the same number.
Your answer is 3.
can you help me please
Answer:
Its A n+(n+6)=24
Step-by-step explanation:
because 6 plus n (blue) is yellow and hen add original blue to equal 24
Answer:
1st: n+(n+6)=24 where n is the number of blue marbles.
What is 367=2389+3717+21831737 also, 29s=29a=938129= ?
Answer:
1. 21837843
2. 28s792215
Step-by-step explanation:
hope this help
which of the following is listed from smallest to largest? ordering fraction
Answer:
c
Step-by-step explanation:
Find 2/3 of 3/4 of 24
Answer:
the answer is 12 which is a whole number
Step-by-step explanation:
i just multiplied them into my phone calculator and got the answer then checked my work. i really hope this helps and don't mind to BRAINLIEST PLZ
help pls and thank you
Answer:
54
Step-by-step explanation:
Without using a calculator, fill in the blanks with two consecutive integers to complete the following inequality.
\,<\sqrt{32}<\,<
32
Okay, suppose You know, 32 is between what? two perfect squares? What are perfect squares? Well, a number of times itself gives me, so like, four times itself is 16, 5 times itself is 25, 6 times itself is 36, So 32 is the closest to 25 In 36. So I'm gonna put 25 Smalling number and 36. And what I could do with this inequality is I could take the square root of all three Side. So square to 25 is in between square to 32 is in between square to 36. So square 25. What himself gives me 25 5 Is in between the square to 32 and what himself gives me 36 6. So that must mean the Square 32 is in between the Avengers five and so.
Over 5 months, Carlos wrote 5 checks for a total of $285.25 to pay for his cable TV service. His cable bill is the same amount each month. What was the change in Carlos’ bank account each month to pay for cable?
I NEED HELP NOW! The number of y calories burned after x hours of rock climbing is represented by the linear function y=650x. 1) Find the domain of the function. may write in math notation or in words. 2) Is the domain discrete or continuous?
[tex]y = 650x[/tex] is an illustration of a linear function
The domain of the function is: [tex][0, \infty)[/tex].The domain is continuousThe function is given as:
[tex]y = 650x[/tex]
Where:
[tex]x \to[/tex] hours on the clock
Because x represents time, it cannot take a negative number.
So, the domain is [tex]x \ge 0[/tex] or [tex][0,\infty)[/tex]
Also:
x can take a whole number or decimal numbers
i.e. You can climb for 1 hour, 2 hours or part of an hour
When a data can take decimal, then such data is continuous.
Hence, the domain is continuous
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Is this equation proportional or not?
y = 4 + x
Marissa subtracted a negative number from a positive number. Her result was negative. Is that reasonable? Explain.
This part is 4 u Anthony
Answer:
Yes, it is reasonable
Step-by-step explanation:
Her result is reasonable because you can have a smaller positive then a negative for example 4 + -9 = -5
Answer:
it isn't
Step-by-step explanation:
It isn't reasonable. For example, 4 - -4 is equal to 8 because when two negative signs are next to each other, it becomes positive.
Find the missing number of the unit rate. *
4/2 = ?/1
The distance light travels in one year is known as a light-year. A light-year is equal to 5.87 × 1012 miles. The closest Earth ever gets to Jupiter is 3.65 × 108 miles. What is a correct representation of the number of years it will take light to travel from Earth to Jupiter at this distance? Check all that apply.
Answer:
The answer is A and C
Step-by-step explanation:
The required distance is 6.21 × 10⁻⁵ light-years it will take light to travel from Earth to Jupiter at this distance. which is the correct answer would be an option (C)
What is the distance?Distance is defined as the product of speed and time.
What are Arithmetic operations?Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operation is called the arithmetic operator.
We have been given that the distance light travels in one year is known as a light year.
one light-year = 5.87 × 10¹² miles.
A light year is the length of time it takes light to travel one distance.
Since the closest that Earth ever gets to Jupiter is 3.65 × 10⁸ miles.
So 3.65 × 10⁸ miles = 1/(5.87 × 10¹² )×(3.65 × 10⁸) light years
⇒ 6.21 × 10⁻⁵ light years
Therefore, the required distance is 6.21 × 10⁻⁵ light-years it will take light to travel from Earth to Jupiter at this distance.
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ILL GIVE BRAINLIEST!! PLEASE EXPLAIN!
I don't understand how an equation will help me get the slope of f(x).
I need an explanation of how an equation(I mean like y = mx + b or something like that) would give me the slope! Please explain how!!
Answer:
You can see the line
Step-by-step explanation:
I know this isn't a good eplanation, but when you graph rise over run on the graph, you can see the line without even drawing it, then you get the slope, via the line, sorry I can't explain better.
Determine the constant of proportionality, k, and interpret it in the context of each problem. 2) The graph shows the relationship between the number of euros Jason received and the number of dollars Jason exchanged during his trip to Spain. *
The constant of proportionality Or the value of Euros is 3/2 times of the value of a dollar.
What are ratio and proportion?A ratio is a comparison between two similar quantities in simplest form.
Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.
In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.
To obtain the constant of proportionality we'll need to determine at least two coordinate points from the graph they are, (1, 3/2) and (2, 3).
Let, no. of dollars be 'x' and no. of euros be 'y'.
So, y = kx.
3/2 = k.
Another way is (3 - 3/2)/(2 - 1).
= (3/2)/1
= 3/2.
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this is the last thing i need..
Answer:
whats the question
Step-by-step explanation:
Sara and Sam are each working on a science project in which they need to research the individual masses of the nine planets (including the dwarf planet Pluto as the ninth planet). Sara completes her data for the planets' masses in kilograms while Sam's data is in milligrams.
Sara:
Planet Mass (in kilograms)
Jupiter 1.989 · 10(27)
Saturn 5.685 · 10(26)
Neptune 1.024 · 10(26)
Uranus 8.681 · 10(25)
Earth 5.974 · 10(24)
Venus 4.869 · 10(24)
Mars 6.419 · 10(23)
Mercury 3.302 · 10(23)
Pluto 1.31 · 10(22)
Sam:
Planet Mass (in milligrams)
Jupiter 1.989 · 10(33)
Saturn 5.685 · 10(32)
Neptune 1.024 · 10(32)
Uranus 8.681 · 10(31)
Earth 5.974 · 10(30)
Venus 4.869 · 10(30)
Mars 6.419 · 10(29)
Mercury 3.302 · 10(29)
Pluto 1.31 · 10(28)
Approximate how many times greater Saturn's mass is than Mercury's.
200,000
2,000,000
2,000
20,000
i put exponents in parenthesis
Amira needs 24 and StartFraction 3 over 10 EndFraction feet of fencing material to make a fence for her small garden. Which number represents the additive inverse of this number?
Answer: -24 3/10
Step-by-step explanation: We have been given that Amira needs feet of fencing material to make a fence for her small garden. We are asked to find the additive inverse of our given number.
We know that additive inverse of a number is that number, which we add to a number to create the sum of zero.
A hot air balloon rose from ground level to 1000 feet in order to pass over a mountain. The balloon then descended
800 feet to a cruising height.
Which point is a representation of cruising height in feet?
Point A
Point B
Point C
Point D
200ft.
Step-by-step explanation:
It's 200ft because you just do 1000 - 800 = 200ft
Point C represent the cruising height.
What is number line?when we represent the numbers on a line the numbers can be positive negative or any type are done on number line zero is the center of the number line.
Given that air balloon height is 1000 feet from ground
and descended to 800 feet
present height of air balloon is 1000 - 800 = 200 feet
Hence according to no. line in figure 200 feet lie in point C
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HELP PLS :C!!
The Rock Zoo nurses 37 species of big cats. Recently, a few species of big cats were sponsored to other zoos around the country. The zoo now nurses only 25 species.
what is the answer?
Answer:
so originally there was 37 now there is 25 so if you trying to find out how many left you take 37-25=12 and 12 is how many left that zoo. hope this helps
i would appreciate the brainliest
A carpenter needs to frame a square window with wood. The wood costs $0.75 per linear foot. If the area of the square window is 154 in², how much will it cost to frame the window?
Answer:
i do not know
Step-by-step explanation:
aaaaa sorry
Here are two line segments. Is it possible to rotate one line segment to the other? If so, find the center of such a rotation. If not, explain why not
Answer:
Look below for a very educated guess
Step-by-step explanation:
Well, if you rotate it, I don't think it will work because from my basic understanding, I think they would intercept with each other, but yet, I've never learned this before
keep in mind this is JUST A GUESS
Answer:
rotate it 90degrees clockwise
Step-by-step explanation:
I used a tissue paper method, take a tissue and draw your shape on it then put your pencil at where it needs to roate and rotate the tissue, I hope you understand
The width of the fountain in Luke's drawing from the example is 2 cm. What is the width of the fountain in Isabella's scale drawing?
Answer:
2.5cm
Step-by-step explanation:
If Luke's scale for his drawing is 5m to 2cm, then it means that every 2cm on Luke's scale drawing represents 5m in real life. So since the width of the fountain is 2cm, the actual fountain width must be 5m. As established in the example, Isabella's scale factor from drawing to real life is 6/3=2, which means any measurement in cm on her drawing can simply be multiplied by 2 to obtain the real life measurement in m. So, to convert back the other way, from real-life to drawing, we just need to divide the value by 2 instead of multiply. So, if the real life value is 5m, then the width on her scale drawing should be 5/2 = 2.5cm.
Hope this helped!
Using proportions, it is found that:
The width of the fountain in Isabella's scale drawing is of 1.6 cm.
-----------------------------------
This question is solved by proportions, using a rule of three.
Isabella's scale is of 6m to 3cm, that is, 2m to 1cm.Luke' scale is of 5 m to 2 cm, that is, 2.5m to 1 cm.From this, it can be taken that a drawing of 250cm in Luke's scale is of 200 cm in Isabella's scale.What is the width of Isabella's drawing, considering that Luke's width is 2 cm?200 cm - 250 cm
x cm - 2 cm
Applying cross multiplication:
[tex]250x = 400[/tex]
[tex]x = \frac{400}{250}[/tex]
[tex]x = 1.6[/tex]
The width of the fountain in Isabella's scale drawing is of 1.6 cm.
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What is the value of the 7 in 0.873?
(answer needs to be a fraction)
Answer:
7/100
Step-by-step explanation:
0.873
7 is in the hundredths place.
The value of 7 in the given number is 0.07, or [tex]\frac{7}{100}[/tex].
Hope this helps.
Answer:
7 is once place because and o.873 /7
Step-by-step explanation:
Find the domain of the function expressed by the formula: y= 2/3 +x