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Elza [17]
3 years ago
6

Solve for w (4w-5)(7-w)=0

Mathematics
1 answer:
nataly862011 [7]3 years ago
7 0

Ask: When will (4w-5)(7-w) equal zero?

When 4w-5=0 or 7-w=0

Solve each of the 2 equations above

w = 5/4 , 7

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Step-by-step explanation:

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8 0
3 years ago
Solve the proportion 40/z+1 = 15/6
vovangra [49]

Answer:

<h2>z = 15</h2>

Step-by-step explanation:

\frac{40}{z + 1}  =  \frac{15}{6}  \\

<u>Cross multiply </u>

That's

15(z + 1) = 40(6) \\ 15z + 15 = 240

<u>Send 15 to the right side of the equation</u>

15z = 240 - 15 \\ 15z = 225

Divide both sides by 15

\frac{15z}{15}  =  \frac{225}{15}  \\

We have the final answer as

<h3>z = 15</h3>

Hope this helps you

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3 years ago
If a builder needs p pieces of wood for every 5s square feet of the building, what is the total amount of lumber of he needs to
Black_prince [1.1K]

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Hope this helps.

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