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Charra [1.4K]
3 years ago
13

What is 4(2x - 9) equivalent to?

Mathematics
1 answer:
Georgia [21]3 years ago
6 0

Answer:

8x - 36

Step-by-step explanation:

Use distributive property: a(b + c) = a*b + a*c

4(2x - 9)= 4*2x - 4*9

            = 8x - 36

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one half the cost of a dress decreased by $12 is the same as 2/5 the cost of a dress. What is the cost of the dress?
guajiro [1.7K]

Answer:

$120

Step-by-step explanation:

Let the cost of the dress be "c"

ONE HALF the cost DECREASED by 12, can be written as:

\frac{1}{2}c-12

2/5th the cost of dress, can be written as:

\frac{2}{5}c

Now, we equate both parts and solve for c to get cost of dress. Shown below:

\frac{1}{2}c-12=\frac{2}{5}c\\\frac{1}{2}c-\frac{2}{5}c=12\\\frac{5-4}{10}c=12\\\frac{1}{10}c=12\\c=\frac{12}{\frac{1}{10}}\\c=12*10\\c=120

Thus,

The ccost of the dress is $120

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3 years ago
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3 years ago
Find the slope of each line y=9/5x+5
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−4m+7=−5 what is m and no you are not adding -4 + m you are multiplying -4 by m
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Answer:

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Step-by-step explanation:

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