A student solves this problem by writing an equation. Which strategy could help check the student’s answer? Check that the sum of the final answer, 12, and 15 is 55. Check that the difference of 55 and the final answer is 12. Check that the sum of the final answer, 27, and 15 is 55. Check that the difference of 55 and the final answer is 15.

Answers

Answer 1

total = green marbles + red marbles + blue marbles

55 = 15 + 12 + blue marbles

55 = 27 + blue marbles

55 - 27 = blue marbles

28 = blue marbles


Related Questions

The Smith family is looking to rent a large truck for their upcoming move. With Rose's Moving, they would pay $40 for the first day plus $6 per additional day. With Riverside Rent-a-Truck, in comparison, the family would pay $90 for the first day plus $1 per additional day. Before deciding on which company to use, Mrs. Smith wants to find out what number of additional days would make the two choices equivalent with regards to cost. How many additional days would that be?

Answers

Answer:

10 days

Step-by-step explanation:

The Smith family is looking to rent a large truck for their upcoming move. With Rose's Moving, they would pay $40 for the first day plus $6 per additional day. With Riverside Rent-a-Truck, in comparison, the family would pay $90 for the first day plus $1 per additional day. Before deciding on which company to use, Mrs. Smith wants to find out what number of additional days would make the two choices equivalent with regards to cost. How many additional days would that be?

Let the number of additional days = x

With Rose's Moving, they would pay $40 for the first day plus $6 per additional day.

40 + 6x

With Riverside Rent-a-Truck, in comparison, the family would pay $90 for the first day plus $1 per additional day.

90 + x

Comparing both

40 + 6x = 90 + x

6x - x = 90 - 40

5x = 50

x = 50/5

x = 10

The number of additional days = 10 days

Pl help it’s for a grade I will give you Brainly if right

Answers

Answer:

b

Step-by-step explanation:

Answer:

It is the last option.

Step-by-step explanation:

Work out the mean for the data set below:
4.7, 4.2, 8.2, 9.5, 3.1

Answers

Answer:

5.94

Step-by-step explanation:

To find the mean, you need to add the numbers and divide it by however many numbers you have.

4.7 + 4.2 + 8.2 + 9.5 + 3.1 = 29.7

There are 5 numbers, so divide the sum by 5

29.7/5 = 5.94

The mean of the data set 4.7, 4.2, 8.2, 9.5, 3.1 will be 5.94.

What is Mean?

The mean is the straightforward meaning of the normal of a lot of numbers.

The data set is given below.

4.7, 4.2, 8.2, 9.5, 3.1

Then total number of the term are 5.

Then the mean will be

Mean = (4.7 + 4.2 + 8.2 + 9.5 + 3.1) / 5

Mean = 29.7 / 5

Mean = 5.94

More about the mean link is given below.

https://brainly.com/question/521501

#SPJ2

Convert the following repeating decimal to a fraction in simplest form.
86

Answers

The answer is 43/50

A The integer with the greatest value is the one that has the greatest absolute value.
B The integer with the greatest value is one that is farthest from zero on the number line.
C The integer with the greatest value is the one that is farthest to the right on the number line.
D The integer with the greatest value is the one that is farthest to the left on the number line.

Answers

Answer: B The integer with the greatest value is one that is farthest from zero on the number line.

Step-by-step explanation: hope it correct :D

CAN SOMEONE PLEASE HELP ME???

Answers

Answer:

f(x)=525+4.75x

Hi I need help please

Answers

Answer:

15%

Step-by-step explanation:

Percent Error formula is the difference between the Actual and the guess value    divided by the actual.

So it's 198- 172  /  172  x 100

= 15%

Solve for the values of x and y. Round the answers to the nearest hundredth.​

Answers

Answer:

x = 26, y = 19

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal, that is

[tex]\frac{ST}{NP}[/tex] = [tex]\frac{RS}{MN}[/tex] , substitute values

[tex]\frac{x}{13}[/tex] = [tex]\frac{32}{16}[/tex] = 2 ( multiply both sides by 13 )

x = 26

and

[tex]\frac{MP}{RT}[/tex] = [tex]\frac{MN}{RS}[/tex] , substitute values

[tex]\frac{y}{38}[/tex] = [tex]\frac{16}{32}[/tex] = [tex]\frac{1}{2}[/tex] ( cross- multiply )

2y = 38 ( divide both sides by 2 )

y = 19

hire purchase
how to find deposit in hire purchase ​

Answers

Answer:

divide the monthly payments by the hire purchase

Step-by-step explanation:

this may be what your asking

Select all irrational numbers.

Answers

Answer:

Option 1 , 2 & 5

Step-by-step explanation:

4 & 16 are perfect squares. So , 1/4 & 1/16 are also perfect squares. But 2 , 8 & 10 are not perfect squares. So root of 1/2 , 1/8 & 1/10 are irrational numbers.

Verification :-

1)[tex] \sqrt{ \frac{1}{10} } = \frac{ \sqrt{1} }{ \sqrt{10} } = \frac{1}{ \sqrt{2} \times \sqrt{5} } [/tex]

Hence , it is irrational.

2)[tex] \sqrt{ \frac{1}{8} } = \frac{ \sqrt{1} }{ \sqrt{8} } = \frac{1}{2 \sqrt{2} } [/tex]

So , it is irrational.

3)[tex] \sqrt{ \frac{1}{16} } = \frac{ \sqrt{1} }{ \sqrt{16} } = \frac{1}{4} [/tex]

So , it is rational.

4) [tex] \sqrt{\frac{1}{4} } = \frac{ \sqrt{1} }{ \sqrt{4} } = \frac{1}{2} [/tex]

So it is rational.

5) [tex] \sqrt{ \frac{1}{2} } = \frac{ \sqrt{1} }{ \sqrt{2} } = \frac{1}{ \sqrt{2} } [/tex]

Hence it is irrational.

Square root of 1/10and 1/8 and 1/2 are the only irrational numbers

PLEASE DON'T JUST WRITE AN ANSWER!!! I WOULD REALLY APPRECIATE A STEP BY STEP EXPLANATION SO I CAN UNDERSTAND IT MYSELF :)) <3
I've gotten this problem wrong three times and can't seem to figure out what I'm doing wrong :(

Castel and Gabriella are selling pies for a school fundraiser. Customers can buy apple pies and lemon meringue pies. Castel sold 6 apple pies and 4 lemon meringue pies for a total of $80. Gabriella sold 6 apple pies and 5 lemon meringue pies for a total of $94.

Could someone please walk me through the process of writing two systems of equations that represents the number of each type of pie????

Let x = cost of each apple pie; y = cost of each lemon meringue pie.

Thank you thank you so so much!

Answers

Step-by-step explanation:

Since Castel sold 6 apple pies and 4 lemon meringue pies for $80, we have 6x + 4y = $80.

Also Gabriella sold 6 apple pies and 5 lemon meringue pies for $94, we have 6x + 5y = $94.

6x + 5y = $94

- (6x + 4y = $80)

=> y = $14.

Therefore 6x + 5($14) = $94, 6x = $24, x = $4.

Hence each apple pie costs $4 and each lemon meringue pie costs $14.

2. calculate the value of c
please help​

Answers

Answer:

[tex] {c}^{2} = {a}^{2} + {b}^{2} \\ {c}^{2} = ({7 \sqrt{2}) }^{2} + ( {7 \sqrt{2} ) }^{2} \\ {c}^{2} = 2(49 \times 2) \\ {c}^{2} = 196 \\ c = \sqrt{196} \\ c = 13 \: units[/tex]

The value of a baseball​ player's rookie card began to increase once the player retired. When he retired in his card was worth ​$. The value has increased by ​$ each year since then. Express the relationship relating the value of the card y in dollars and the number of years x the player has been in retirement with an equation. Is the relationship between x and y​ proportional? What was the value of the card in ​?

Answers

Answer:

No, x and y are not proportional

The value of card in 2006 = $38.05

Step-by-step explanation:

I got this! I hope this helps!

PLEASE HELP!!! URGENT!!!
Marcus states that the polynomial expression 3x3 – 4x2y + y3 + 2 is in standard form. Ariel states that it should be y3 – 4x2y + 3x3 +2. Explain which student is correct and why.

Answers

Answer:

They are both correct because there is more than one way to write a multivariable polynomial in standard form. Marcus has the exponents on the x variable in descending order from the highest degree to the lowest degree. Ariel has the exponents on the y variable in descending order from the highest degree to the lowest degree.

Sample Response: They are both correct because there is more than one way to write a multivariable polynomial in standard form. Marcus has the exponents on the x variable in descending order from the highest degree to the lowest degree. Ariel has the exponents on the y variable in descending order from the highest degree to the lowest degree.

a 10-foot by 12-foot wall has two windows that measures 3 feet by 5 feet each if the windows are not to be painted what percent of the wall will be painted in a percentage

Answers

75% of the wall will be painted. 10•12=120. (3•5)2)=30. 30/120=.25 That mean 25% of the wall is window, and 75% is paintable.

Determine, in general form, the equation of the line that goes through the
point (3,-6) and is perpendicular to the line shown: 5x + 3y + 9 = 0

Answers

Answer:

I got

y=3/5x -39/5

Step-by-step explanation:

Hope this helps

In a system of two linear equations, the lines represented by each equation have the same slope. Which could be the total number of solutions to the system of equation

Answers

Answer:

Please see explanation

Step-by-step explanation:

A system of linear equations in two variables represents two lines on graph.

When both the lines have same slope, there can be two cases

Same slope with different y-intercepts

When two lines have same slope and different y-intercepts, that means that both lines are parallel and parallel lines have no solution.

Same slope with same y-intercepts

When the slope of both lines is same and the y-intercept is also same, this means that both the equations refer to the same line. This means that the system has infinite number of solutions.

4. Solve the inequality. 9+8 l 4a - 5 l >113​

Answers

Answer:

i need this for a challenge

Step-by-step explanation:

If n = 4, all of the following expressions are equivalent except _____.


16

n ^-2

1/16

1/n^2

Answers

Are those choices or what?

Solve for X
6(x + 2) = 66
X =

Answers

Answer:

6(x+2)=66

6x+12=66 -12

6x= 54 :6

x=9

Step-by-step explanation:

prove me wrong

When paying for a restaurant order, a customer spent $18.00 ( for tip and cost) for a $15.00 meal. What percent was the tip? *

Answers

Answer:

16.67%

Step-by-step explanation:

The customer spent a total of $18 on a $15 meal. This means that, if counting tax within the $15 meal, the tip is $3.

Divide 3 with the total cost:

3/18 = ~0.1667

Change to percentage. Simply move the decimal point to the right two place values, and add a percentage sign:

0.1667 to a percent = 16.67%

16.67% is your answer.

~

Answer:

1.6 %

Step-by-step explanation:

15/18= 8.4

The circumference of a circle is about 40.82 inches. What is the diameter and the radius of the circle? Round to the nearest tenth and show all work.

Answers

Answer:

Step-by-step explanation:

The diameter is 13 and the radius is 6.5

ASAP! please help, thanks​

Answers

Answer:

d should be correct

Step-by-step explanation:

prove me wrong

d is the right answer

Pls help I have to turn this in tomorrow

Answers

Answer:

10/15 - 3/15= 7/15

Step-by-step explanation:

none

ASAP HELP!!!!!!!!!!!!!!!!!!!!!!!!!!! i'll give brainliest!!!!!!!! help me !!!!!!!

Answers

Slope is 2/1 or 2
The y intercept is 3
Equation is y=2x+3

Help quick!!!

What is the distance between the following points:

A ( 25,20 ) B ( 5, 20 )

Answers

Answer:

(20,0)

Step-by-step explanation:

I think that's it sorry if I am wrong:(

The area of a rectangle is 1,872 ft2. The ratio of the length to the width is 9:13. Find the perimeter of the rectangle. A. 88 ft B. 117 ft C. 168 ft D. 176 ft

Answers

Answer:

Length = 36

Width = 52

Step-by-step explanation:

Area of rectangle = Length * width

Length = L ; Width = W

Area (A) = 1872 ft²

Ratio L:W = 9:13

Hence,

1872 = lw - - - (1)

l/w = 9/13 - - - (2)

From (2)

13l = 9w

l = (9/13)w - - (3)

Put (3) into (1)

1872 = (9/13)w * w

1872 = 9/13 w²

24336 = 9w²

24336 / 9 = w²

2704 = w²

w = 52

If w = 52

1872 = 52 * l

l = 1872 / 52

l = 36

Length = 36

Width = 52

The ratio to ally's money to Jonathan's money is 4:9 if ally has 36 dollars then how much does Jonathan have

Answers

Answer:

81

Step-by-step explanation:

4/9=36/81

I WILL GIVE YOU BRAINLY PLSS



It costs Fred $0.20 to send a text message from his cell phone. He has already spent $4 in text messages this month. If he has a total of $10 that he can spend
this month on text messages, which inequality shows the greatest number of text
messages that he can send?
A. 4 + 0.20 ≤ 10
B. 4 + 0.20 ≤ 10
C. 4 + 0.20 < 10
D. 4 + 0.20 < 10


PLSS SHOW YOUR WORK PLSS

Answers

Answer:

I think it should be 4+ .20 = 10 so A or B maybe you wrote it out wrong

so the answer is A or B because you have to divied and A and B are the same  he would end up sending 50 msg

Good Mornting hru?
3(7)+4(6)=

Answers

Answer:

45

Step-by-step explanation:

im good, u?

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