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Brilliant_brown [7]
3 years ago
14

If zeina has seven times as many books as ali if zeina gave ali 15 books they would eash have the same number of books how many

books did each have
Mathematics
1 answer:
kramer3 years ago
8 0

Answer:

<em>Zeina had 35 books and Ali had 5 books</em>

Step-by-step explanation:

<u>Equations</u>

We know Zeina has seven times as many books as Ali. If we call

x = Number of books Ali has

Then Zeina has

7x = Number of books Zeina has

We also know if Zeina gave Ali 15 books, they would have the same number of books, thus:

x + 15 = 7x - 15

Adding 15:

x + 15 +15 = 7x

Subtracting x:

15 +15 = 7x - x

Operating:

30 = 6x

Dividing by 6:

x = 30 / 6

x =5

7x = 35

Thus Zeina had 35 books and Ali had 5 books

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A rectangle has an area of 20 square feet a similar rectangle has an area of 180 square feet what is ratio of the areas of these
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Answer:

The ratio of the areas of the smaller rectangle to the larger rectangle is  \frac{1}{9}

Step-by-step explanation:

we know that

if two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z-----> the scale factor

x-----> the area of the smaller rectangle

y----> the area of the larger rectangle

so

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substitute the values

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z^{2}=\frac{1}{9}

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That means, the dimensions of the larger rectangle is 3 times the dimensions of the smaller rectangle

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3 years ago
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Answer:

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3 0
3 years ago
Joe's Ice Cream Shop has 7/8 of a gallon of vanilla ice cream left. They use 1/12 of a gallon of ice cream to make one milkshake
Vadim26 [7]

Answer:

Ten and a Half milkshakes can be prepared from the available amount of ice cream.

Step-by-step explanation:

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Now, total number of milkshakes possible = \frac{\textrm{Total availibility of ice cream}}{\textrm{Ice cream used for each milkshake}}

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Question 14
MissTica

Answer:

Hola como esta

yo soy de Argentina

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