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telo118 [61]
3 years ago
6

Mario and Luigi were selling coupon books for the Video game club fundraiser. Apparently, Mario is a much better salesperson, be

cause he sold 4 times as many coupon books as Luigi. If Luigi sold 12 fewer coupon books than Mario, what was the total number of coupon books the two boys sold?
Mathematics
1 answer:
sattari [20]3 years ago
4 0

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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Answer:

x = 54

y = 0.225

Detailed steps:

We know that the number of total events is

n = 80

and that the probability of a certain event E (for example, "<em>the enemy drops two objects</em>") is computed as the number of times event E occurred, divided by the total of events N=80.

Then:

0.675 =  \frac{x}{80}

x = 80 \times 0.675 = 54

and

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We can verify by checking that adding all probabilities sums up to one.

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harina [27]

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Step-by-step explanation:

Hi, since 1000 milliliters = 1 liter

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Finally, we have to divide the amount of lemonade she needs to serve (4,000 ml) by the capacity of the pitcher (2,000), to obtain the number of times that she will need to fill the pitcher.

4,000/2,000=2 times

Feel free to ask for more if needed or if you did not understand something.

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