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olasank [31]
3 years ago
15

7x-8y=13 solve for y

Mathematics
1 answer:
Gala2k [10]3 years ago
5 0
Get y alone
so
-8y=13-7x (by subtracting 7x from both sides)
now you still want y by itself so you divide by -8
leaving you with
y=-13/8 + 7/8
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Rick is building a scale model of the Alamo for his Texas History class. In this model, he is using a scale in which 3 inches re
motikmotik

Answer:

18 inches

Step-by-step explanation:

Rick is building a scale model of the Alamo.

We are given a scale that 3 in. = 15 ft.

The length of the Alamo is 90 feet.

What is the length of the scale model in inches?

So we know that for every 15 feet, 3 inches are actually used in the project and we need a total of 90 feet. To solve, we need to find how many times 15 goes into 90, in which the number it multiplies to will apply to the inches.

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90 / 15

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It takes 15 6 times to get to 90, meaning that we need to multiply 3 inches 6 times to find the actual length of the scale model in inches.

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3 years ago
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3 0
3 years ago
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nataly862011 [7]
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4 years ago
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7 0
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Be safe!

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4 years ago
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