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ivanzaharov [21]
3 years ago
6

Lucy earns 52 dollars each week working part-time at a bookstore. She earns one additional dollar for each book that she sells.

Mathematics
2 answers:
Misha Larkins [42]3 years ago
5 0

Answer:

A = B + 52

Step-by-step explanation:

A is the total amount each week. 52 is the initial amount that she earns each week. Then, B represents the amount of books she sells. So, 15 books can be represented by

A = 15 + 52 = 67

maksim [4K]3 years ago
4 0

Answer:

$67 earnings

Step-by-step explanation:

1.    Let A = $ earned for books sold

2.   Let B = # of books sold

3.   Let A = money earned

4.   Equation:  A =  52 + 1B

5.   Solution:  $67 = 52+ 1(15)

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Answer:

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Step-by-step explanation:

The area of trapezoid is

=\frac12(\textrm{ sum of parallel sides})\times height

Given that the height of a trapezoid is 8 in. and its area is 96 in².

Assume the bases of the trapezoid be b₁ and b₂.

Since one base of the trapezoid 6 in. longer than the other.

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The area of the trapezoid is

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\frac12(2b_2+6)\times8 =96

\Rightarrow 2b_2+6=\frac{96\times 2}{8}                [ Multiplying \frac28 ]

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\Rightarrow b_2=\frac{18}{2}

\Rightarrow b_2=9

Then, b_1=b_2+6

              =9+6

             =15 in

The lengths of the bases are 9 inches and 15 inches.

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