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notka56 [123]
4 years ago
15

Alex sold wrapping paper rolls (r) as part of a school fundraiser. He earned a total of 156 reward points from his sales. Using

the equation 3r = 156, how many rolls of wrapping paper did Alex sell?
52
Mathematics
1 answer:
Eva8 [605]4 years ago
5 0

Answer:

52

Step-by-step explanation:

Alex earned 156 reward points for selling wrapping paper rolls.

Using the given equation

3r = 156

r = 156/3

r = 52

Alex sold 52 wrapping paper rolls

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Will says that in the number 8,184​, one 8 is 10 times as great as the other 8. Is he ​correct? Explain why or why not.
Vinil7 [7]
No he is not correct .
Break apart the number 8,184
You will get
8000 + 100 + 80 + 4

The numbers we are comparing are 8000 and 80

80 x 10 = 800

The number we are looking for is 8000

This makes the claim that one 8 is 10 times greater false as it is in fact 100 times as great.

4 0
3 years ago
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The length and breadth of a rectangular room are 5m and 3.2m. Find the cost carpeting the room at the rate of $500 per square me
ollegr [7]
The answer is 800 bc it is
6 0
3 years ago
A deposit of $1000 is made in an account that earns 8% interest compounded quarterly. The balance in the account after n quarter
Lilit [14]

The balance after ten years is $2,208.04.

When an amount of money is compounded quarterly, it means that the amount deposited and the interest earns interest every quarter. The formula that can be used to determine the balance in 10 years is:

FV = P (1 + r)^nm

  • FV = Future value  
  • P = Present value = $1000
  • R = interest rate = 8%/4 = 2%
  • m = number of compounding = 4  
  • N = number of years = 10

$1000 x (1.02)^40 = $2,208.04

To learn more about future value, please check: brainly.com/question/18760477

7 0
2 years ago
You might need: Calculator
kipiarov [429]

Answer:

Mean: 36.5

Standard Deviation: 1.44

Step-by-step explanation:

I got it right on Khan.

5 0
3 years ago
Select all the expressions ​
enot [183]

Answer:

B, C, E

Step-by-step explanation:

Answer choice A):

$300 ×  = $75

* This answer choice represents the calculation of discount only and not the final selling price of the bicycle.

Answer choice B):

$300 ×  = $225

* This answer choice represents the calculation of the final selling price of the bicycle.

Answer choice C)

$300 × (1 - ) = $225

* This answer choice represents the calculation of the final selling price of the bicycle.

Answer choice D):

$300 - 1/4

*This answer choice shows an incorrect equation which neither represents the calculation of the discount nor the final selling price of the bicycle.

Answer choice E):

$300 -  × $300

Applying the rule of PEMDAS,

We start with division; 1 ÷ 4 = 0.25

Then we go to multiplication; 0.25 × $300 = $75

Finally we do the subtraction; $300 - $75 = $225

* This answer choice represents the calculation of the final selling price of the bicycle.

4 0
3 years ago
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