Which expression is the result of the perimeter of rectangle b minus the perimeter of rectangle a
1 answer:
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Using the together rate, it is found that they would prepare the solution in 1.71 minutes working together.
<h3>What is the together rate?</h3>It is the sum of each separate rate.
In this problem, the rates are given by:
- Johanna's: 1/6.
- Elizabeth's: 1/6.
- Dan's: 1/4.
Hence the together rate is given by:
7x = 12
x = 12/7
x = 1.71.
They would prepare the solution in 1.71 minutes working together.
More can be learned about the together rate at brainly.com/question/25159431
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Answer:
Part A:
Part B : x = 15
Part C: Megan purchased 15 books.
Step-by-step explanation:
Megan earns a rebate each month on completing surveys and books.
She earns $0.75 for each survey she completes and $1 for each book. Now, last month Megan completed 8 surveys and earned $21.
Part A: If Megan purchased x number of books last month, then the equation that will determine the number of books she purchased, is
.......... (1) (Answer)
Part B: Now, solving equation (1) we get,
6 + x = 21 {Since, 0.75 × 8 = 6}
⇒ 6 + x - 6 = 21 - 6 {Subtracting 6 from each side} {Subtraction property}
⇒ x = 15 (Answer)
Part C: Megan purchased last month 15 books. (Answer)