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Sophie [7]
3 years ago
8

Jessica and Josh are selling Entertainment Books to raise money for the art room at their school. One book sells for $20. Jessic

a received the prize for selling the most books in the school. Jessica sold 11 times more books than Josh. Together they sold 84 books. How many did each one of them sell?
Mathematics
2 answers:
DENIUS [597]3 years ago
6 0

Answer:

77 and 7

Step-by-step explanation:

Let the number of books sold by Jessica be A and Josh be B.

Cost of one book = $20

Jessica sold 11 times Josh .

That’s A = 11B

Together they sold 84 books.

That’s A + B = 84

We now have two equations ,

Equation 1 : A = 11B

Equation 2: A + B = 84

Substitute 11B for A in equation 2.

We have ,

11B + B = 84

12B = 84

Divide both sides by 12

B = 84/12

B = 7

Josh sold 7 books

Now substitute 7 for B in either of the equations to get A. Using equation 1 , we have

A = 11B

A = 11 x 7

A = 77

Jessica sold 77 books while Josh sold 7

earnstyle [38]3 years ago
5 0

Answer: Jessica sold 77 books. Josh sold 7 books.

Step-by-step explanation:

Let x represent the number of books that Jessica sold.

Let y represent the number of books that Josh sold.

Together they sold 84 books. This means that

x + y = 84- - - - - - - - - - - - - -1

Jessica sold 11 times more books than Josh. This means that

x = 11y

Substituting x = 11y into equation 1, it becomes

11y + y = 84

12y = 84

y = 84/12

y = 7

x = 11y = 11 × 7

x = 77

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A gift box has dimensions of: 8 1 2 inches, 5 1 2 inches, and 2 1 2 inches, respectively. how many cubes with side lengths of 1
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ivolga24 [154]

Based on the information, there were initially 1200 ferns; the monthly percent rate of change is 68% and this situation is modeled by an exponential growth function

<h3>How to complete the information?</h3>

The given parameters from the question are:

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Where

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An exponential growth function is represented as:

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Where

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Read more about exponential growth function at:

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