Answer:
14
Step-by-step explanation:
*Notice that number of green marbles did not change throughout
Therefore,
36 green marbles -> 2/5 of Sean total marbles
Sean's total marbles = 36/2 *5 = 90
Number of red marbles won = 90-36-40 = 14
Kat is painting the four walls of her bedroom. She paints 52 square feet in 23 of an hour. How many square feet does she paint per hour?
Kat is painting the four walls of her bedroom. She paints 52 square feet in 2/3 of an hour. How many square feet does she paint per hour?
Answer ↷78 sq. ft
Solution ↷Area Kat can paint in 2/3 of an hour ⤏52 sq. ft★ 2/3 of an hour ⤏ 2/3 x 60 = 40 minutes
Area kat can paint in a minute ⤏ 52/40 = 1.3 sq. ftArea kat can paint in 60 minutes ⤏ 60 x 1.3 = 78 sq. ft★ An hour ⤏ 60 minutes
Hence , kat can paint 78 sq. ft in an hour
100-20=80
x(x-5)=x²-5x
x²-5x+x+2x=x²-2x
x²-2x=80
x²-2x-80=0
(x-10)(x+8)=0
x=10 x=-8
This is what i've done so far but i don't know what to do next
Step-by-step explanation:
x=10x=8
8=10x-8
8=9x
divide both side by 9
x=8 out of 9
a company can make a new computer for $150. if they sell the same computer for $500, what is the markup percentage?
Solution:
Note that:
Profit percentage: S.P - C.P/C.P x 100C.P = $150S.P = $500Substitute the values into the expression to find the profit percentage.
Substituting the values.
S.P - C.P/C.P x 100=> 500 - 150/150 x 100=> 350/150 x 100=> 350/3 x 2 = 233.33%The markup percentage is 233.33%.
Simplify the expressions:
7p + 9t
The answer is 7p + 9t
Because they are both unlike terms
Answer:
7p + 9t
Step-by-step explanation:
We cannot further simplify 7p + 9t because they don't have any like terms to combine with, nor are they even like terms.
Triangles J K L and X Y Z are shown. Angles K J L and Y X Z are right angles. The length of Y X is 10. The length of hypotenuse K L is 10.
Could ΔJKL be congruent to ΔXYZ? Explain.
Yes, if JL ≅ XZ.
Yes, if XZ = 10.
No, because the hypotenuse of one triangle is equal in length to the leg of the other triangle.
No, because the leg of one triangle is equal in length to the leg of the other triangle.
ΔJKL and ΔXYZ CANNOT be congruent triangles because: the hypotenuse of one triangle is equal in length to the leg of the other triangle.
What are Congruent Triangles?Congruent triangles are triangles whose corresponding sides are congruent to each other.
The hypotenuse of triangle JKL(KL = 10) is congruent to a leg of triangle XYZ (YX = 10). This implies that they cannot be congruent triangles.
Therefore, ΔJKL and ΔXYZ CANNOT be congruent triangles because: the hypotenuse of one triangle is equal in length to the leg of the other triangle.
Learn more about congruent triangles on:
https://brainly.com/question/11457412
Answer: The answer is C
Step-by-step explanation: Just took the test on edge
Calculate an estimate of the median for each of the following.
Answer:
the median somewhere in the range of (120,160]
Step-by-step explanation:
the median is always the center of the data points.
There are 100 data points, so the median is the mean of the points 50&51.
Those points are found between 120 and 160 so the median is also found there.
As for an estimate, there isn't one.
Please mark me as brainliest!
Jess is having a private party at the bowling alley. The party costs $99 plus $3 per person who attends. Which expression can Jess use to figure out the total amount of money she owes at the end of the party?
EXPLAIN YOUR ANSWER
33x
33+x
99+3x
99x+3
Answer:
Total cost= 99 + 2.97x
Step-by-step explanation:
Giving the following information:
Fixed cost= $99
Variable cost= 3% per person
First, we need to calculate the 3% of 99:
Unitary variable cost= 99*0.03= $2.97
Now, we establish the total cost structure:
Total cost= 99 + 2.97x
x= number of people in attendance
Finally, suppose 200 people attend the party:
Total cost= 99 + 2.97*200
Total cost= $693
Answer:
99+3x
Step-by-step explanation:
Given;
Party cost $99
$3 per person who attends
To Find;
Which expression can Jess use to figure out the total amount of money she owes at the end of the party?
Solve;
Since, we don't know the total amount of money she owes at the end of the party. Total amount of money she owes at the end of the party = x
Thus, Party Costs ($99) plus per person who attends($3) and Total amount of money she owes at end of party (x)
As well as,
[A] 33x, [B] 33 + x, and [D] 99x+3 didn't clearly or completely shows the party's situation. Hence, the Best Answer is [C] 99+3x
[RevyBreeze]
There are 40 painters in a crew. On a certain day, 87. 5% were present. How many people did not show up for work?
Answer:
35 people did not show up for work.
Step-by-step explanation:
87.5/100 ×40/1
87.5×40=3500
100×1=100
3500/100 simplified is 35
A music shop has a sale, all item are reduced by 30%. The sale price of a CD is £3.36. What was the original price?
if LN=12+16 what is length of LN in units?
28 units :)
12 + 16 = 28
Sean is conducting an experiment with an isotope of a particular element that has a half-life of 4 hours. He begins with a sample of the isotope with a mass of 77 grams. He then measures the mass of the object every hour. What is the approximate mass of the sample after 24 hours?
A.
4,928 grams
B.
0. 0156 of a gram
C.
0. 6016 of a gram
D.
1. 2031 grams
Mr. Martinez decided to invest his money in a mutual fund. This table gives the amount of money Mr. Martinez had in his account over the course of 42 months. The table can be modeled using an exponential function.
Months 6 12 18 24 30 36 42
Account value $1,339 $1,798 $2,408 $3,225 $4,321 $5,792 $7,766
What function best represents the data?
A) y=75 x 1. 22x
B) y=75x
C) y=1000+1. 34x
D) y=1000 x 1. 05x
Answer:
y=1000⋅1.05x
Step-by-step explanation:
I took the test.
The function that most effectively represents the given data would be:
D). y = 1000 × 1.05x
Exponential Function
Given that,
No. of the months Account value
6 $1,339
12 $1,798
18 $2,408
24 $3,225
30 $4,321
36 $5,792
42 $7,766
The function that represents the given data effectively:
y = 1000 × 1.05x
This helps in showing the times by which the value variates every 1000.
Thus, option D is the correct answer.
Learn more about "Exponential Function" here:
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Which fraction correctly represents one whole?
5/5
1/5
3/5
5/1
Answer:
5/5
Step-by-step explanation:
If you convert these fractions into decimals, you will get
5/5 = 1
1/5 = 0.2
3/5 = 0.6
5/1 = 5
Hope this helps :)
Answer:
5/5
Step-by-step explanation:
if you want to divide 1 whole into a fraction then the top number would have to be the same as the bottom number, for example 5/5. The top number is 5 which is the same as the numerator which will equal to 1 whole.
While 1/5 and 3/5 is less than 1 whole
And 5/1 is more than 1 whole but its way past the numerator
The box plots show the average wind speeds, in miles per hour, for various cities in two different countries.
Average Wind Speeds of Cities in Country A
2 box plots. The number line goes from 1 to 11. For the average wind speeds of cities in country A, the whiskers range from 1 to 9.5, and the box ranges from 3 to 7. A line divides the box at 4. For the average wind speeds of cities in country B, the whiskers range from 1.2 to 11, and the box ranges from 4 to 9. A line divides the box at 6.
Average Wind Speeds of Cities in Country B
Which statement compares the median wind speeds for the data in the two box plots?
The median wind speed for country A is greater than the median wind speed for country B.
The median wind speed for country B is greater than the median wind speed for country A.
The median wind speed for country A is about 7 miles per hour, and the median wind speed for country B is about 9 miles per hour.
The median wind speed for each country is about 4 miles per hour.
Answer:
B.) The data in country B are more symmetric than the data in country A.
Step-by-step explanation:
mark me brainliest!!
Answer:
B: The data in country B are more symmetric than the data in country A
Step-by-step explanation:
I took the quiz :D
A car purchased for $25,000 is worth $23,750 after being used for one year. Find the percent decrease
A. 95%
B. 95%
C. 0. 5%
D. 5%
Answer:
0.95=95%
Step-by-step explanation:
25,000*0.95=23750
Here are descriptions for how two dot patterns are growing,
• Pattern A Step 2 has 10 dots. It grows by 3 dots at each additional step.
Pattern B: The total number of dots can be expressed by 2n^2+1, where n is the
step number
For each pattern, draw a diagram of Step 0 to Step 3.
The steps in the patterns A and B form a sequence
The attached diagram represents dots in patterns A and B
How to draw the diagramsFor pattern A, we have:
Step 2 = 10 dots
Increment of 3 dots in each step
This means that:
Step 0 = 4 dots
Step 1 = 7 dots
Step 2 = 10 dots
Step 3 = 13 dots
For pattern A, we have the following rule
[tex]T_n =2n^2 + 1[/tex]
When n = 0 to 3, we have:
[tex]T_0 =2(0)^2 + 1 =1[/tex]
Step 0 = 1 dot
[tex]T_1 =2(1)^2 + 1 =3[/tex]
Step 1 = 3 dots
[tex]T_2 =2(2)^2 + 1 =9[/tex]
Step 2 = 9 dots
[tex]T_3 =2(3)^2 + 1 =19[/tex]
Step 3 = 19 dots
Next, we draw the diagrams of both patterns (see attachment)
Read more about patterns at:
https://brainly.com/question/15590116
Q2) A cylinder with a diameter of 4 ft, and height of 6 ft. Find the VOLUME and SURFACE are of the cylinder.
Answer:
Volume: 75.39 ft^3
Surface area: 100.5 ft^2
Step-by-step explanation:
To find volume, you use the formula V=πr^2h (V=3.14*2^2*6)
To find the surface area you use formula A=2πrh+2πr^2 (A=2*3.14*2*6+2*3.14*2^2)
[tex]three fourth plus one fourth[/tex]
Answer:
[tex]one\\whole\\or\\\frac{4}{4}[/tex]
hope this helps!
Nico rolled two number cubes 250 times 6 6 The table shows his results. NC1 NO2 1 2. 3 4 5 6 1 6 7 3. 9 9 7 7 2 2 4 8 6 5 10 2 3 7 6 11 9 8 7 4 6 7 6 8 9 5 5 3 5 9 7 6 4 6 6. 5 3 4 26 Use the table to find the experimental probability of rolling a 5 on the red number cube, NCI, and a 2 on the blue number cube, NC2. Enter the correct answer in the boxes,
Using it's concept, it is found that there is a 0.04 = 4% experimental probability of rolling a 5 on the red number cube, NCI, and a 2 on the blue number cube, NC2.
What is a probability?A probability is given by the number of desired outcomes divided by the number of total outcomes.
In an experimental probability, these number of outcomes is taken from previous trials.
Researching this problem on the internet, it is found that out of the 250 rolls, 10 resulted in a 5 on NC1 and 2 on NC2, hence:
p = 10/250 = 1/25 = 0.04.
0.04 = 4% experimental probability of rolling a 5 on the red number cube, NCI, and a 2 on the blue number cube, NC2.
More can be learned about probabilities at https://brainly.com/question/14398287
Find f (-1) please and thanks
Answer:
Step-by-step explanation:
f(x) = one of two values. There is a value given for what happens when x<>-1 and another when x is equal to minus 1. Which do you want?
Examine what f(x) means. It means that wherever you see an x value on the right, you put in the value shown for x on the left.
Try another example.
f(x) = x^2 - 2x
f(4) = 4^2 - 2*4 Whatever is shown on the left is put into the x on the right.
Same with your question
f(-1) means that the only possible answer is 5
Brandon owes his brother $120. He has a stamp collection worth $1,250 and he has $300 in a bank account. He also has a skateboard worth $95. Which are Brandon’s assets?.
Answer: brandons assets are the stamp collection, the bank account, and the skate board .
Step-by-step explanation:
Can someone help I’m stuck on this?
Answer:
1/6
Step-by-step explanation:
This is conditional probability.
If heads is tossed, then and only then does he have the option to draw either green or red and have the full 'Head, Green/Red' combination.
So, the probability of the first event - getting heads, is 1/2, since either heads or tails can be flipped with 50/50 chance.
The probability of the second event - picking either green or red, is 1/3, since there are 6 colour options - blue, red, yellow, green, orange and purple - of which 2 can be chosen. Thus, 2/6, which simplifies to 1/3
Now since these are both independent events, we must multiply their probabilities.
1/3 * 1/2 = 1/6
how do I find a surface area of a prism
Which expression is equivalent to 3/2?
Answer:
[tex]1 \frac{1}{2}[/tex]
Any numerator that is greater than the denominator is considered an improper fraction but can be converted to a mixed number.
Mixed numbers look like the fraction shown above.
Helen has 3 quarters and 1 penny. How much money does she have?
Answer:
76 cents
Step-by-step explanation:
Susie bought 14 dolls this week. Last week she had 28 dolls. Which of the
following equations could be used to determine how many dolls Susie
has now?
A. 28 − 14 = x
B. 28 + 14 = x
C. x + 14 = 28
D. x + 28 = 14
Answer:
B. 28 + 14 = x
Step-by-step explanation:
Susie bought 14 dolls this week. Last week she had 28 dolls. determine how many dolls Susie has now.
using this info we know that we must find the sum of both numbers.
Hence, Answer B has the correct equation
when a,b are real number and i^2 = -1 then what is value of |a-b| ? help me please!!!
Answer: 0
Step-by-step explanation:
1. Donna bakes biscuits on a rectangular cookie sheet that is 30cm by 50 cm. Each biscuit has a diameter of 8cm.
If Donna bakes the maximum number of biscuits, what area do the biscuits take up on the cookie sheet? (ill make brainiest)
Find the product of (x + 5)(x - 5).
x2 - 10x + 25
x2 + 10x + 25
x2 - 25
x2 + 25
Answer:
x²-25
Step-by-step explanation:
Hi there!
We are given (x+5)(x-5) and we want to find their product.
As these are binomials, we can multiply them using FOIL, which is First, Outer, Inner, Last
So let's start with the firsts, which would be (x+5)(x-5), or the 2 x's; x*x=x²
Next, let's do the outers, which would be (x+5)(x-5); x * -5 = -5x
Now the inners; (x+5)(x-5); 5 * x = 5x
Finally, the lasts; (x+5)(x-5); 5 * -5 = -25
Now add all of these terms together:
x²-5x+5x-25
We can combine the 5x and -5x together to become x²-25
So the answer is x²-25, which is a difference of squares expression (if we have (a-b)(a+b), then the result is a²-b²).
Hope this helps! :)
See more on the difference of squares here: https://brainly.com/question/16085851
Part B
What is the interquartile range of the number of days represented on Kelly's line plot? Be sure to show
your work and explain your reasoning.
0, 0, 2, 2, 2, 3, 4, 4, 5, 5, 5, 7, 7