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3 years ago

1 8 ( 5 − 3 w ) answer

Mathematics

2 answers:

alexandr402 [8]3 years ago

7 0

Hi there!

Your equation states 18(5 - 3w).

When a number touches parentheses like shown in your equation it means multiplication.

Start from the last number and then move up.

18 × (-3w) = -54w

18 × 5 = 90

Combine your answers.

Your answer would be -54w + 90

Hope this helped!~

MariettaO [177]3 years ago

3 0

18 (5-3w) multiply 18 by 5 and -3w
the answer is 90-54w

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Given: A baker is using a cookie that calls for 2 $\frac{1}{4}$ cups of flour to yield 36 cookies.

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Let's convert 2 $\frac{1}{4}$ to improper fraction.

$2\frac{1}{4} = \frac{(2*4) + 1}{4} = \frac{9}{4}$

Let "x" be the amount flour to make 90 cookies

<u>Amount of Flour</u> <u>Number of cookies</u>

$\frac{9}{4}$ 36

x 90

Now form a proportion.

$\frac{\frac{9}{4}}{x} = \frac{36}{90}$

Now let's cross multiply, we get

$\frac{9}{4} *90 = 36x\\\$

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Now let's simplify the fraction part, Here the GCF of 90 and 144 is 18, so dividing the fraction's numerator and the denominator by 18, we get

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So the baker needs $5 \frac{5}{8}$ cups to make 90 cookies.

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3 years ago