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nadezda [96]
3 years ago
14

It takes 60 minutes for 7 people to paint 5 walls. How many minutes does it take for 10 people to paint 10 walls?

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
3 0
It should take 35 min to do the wall!
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Hellohello, if you able to help me then please do. (:
mars1129 [50]

Answer:

exact form: 4/9

decimal form: 0.4 repeating

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7 0
3 years ago
Mario and Luigi were selling coupon books for the Video game club fundraiser. Apparently, Mario is a much better salesperson, be
sattari [20]

Answer: the total number of coupon books sold is 20.

Step-by-step explanation:

Let x represent the number of coupon books that Mario sold.

Let y represent the number of coupon books that Luigi sold.

Apparently, Mario is a much better salesperson, because he sold 4 times as many coupon books as Luigi. This is expressed as

x = 4y

If Luigi sold 12 fewer coupon books than Mario, the expression would be

x = y + 12 - - - - - - - - - - -- -1

Substituting x = 4y into equation 1, it becomes

4y = y + 12

4y - y = 12

3y = 12

y = 12/3

y = 4

x = 4y = 4 × 4

x = 16

The total number of coupon books that the two boys sold is

4 + 16 = 20

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tia_tia [17]

Answer:

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Step-by-step explanation:

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3 years ago
Suppose you want to buy 100 pens. You can buy 100 pens at a 10% discount at one store where the price is $6.99 per pen. And you
andriy [413]

Answer:

a. $629.10

b. $635.80

c. $6.70

Step-by-step explanation:

The first thing we need to do is turn these percentages into decimal values by dividing them by 100, this would make 10% into 0.10 and 15% into 0.15. Now we can make the following equations to calculate the total by multiplying the 100 pens by the individual pricer per pen, and then multiplying that product by the 1 minus the discount percentage.

A)    (100 * 6.99) * (1 - 0.10) = x

          699 * 0.90 = x

              $629.10 = x

B)    (100 * 7.48) * (1 - 0.15) = x

          748 * 0.85 = x

              $635.80 = x

C)   635.80 - 629.10 = $6.70

The difference is $6.70 more for the 100 pens in the second store.

   

7 0
3 years ago
gavusto was asked to generate several expressions that would be equivalent to the one below for each of his expressions determin
OLEGan [10]

Answer: true

Step-by-step explanation:go go go

3 0
3 years ago
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