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Novay_Z [31]
3 years ago
13

How do I solve ratio and rate problems using equivalent ratios or cross products?

Mathematics
1 answer:
sdas [7]3 years ago
7 0
You have to simplify diagonally them multiply Example:

3
5. 18. 15
__. / ___ =. ___ =
6. 2. 12
1

3/4

Cross simplify
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Solve 8(x+2)=36.......
brilliants [131]
We have to use the Distributive Property in this equation.
By the Distributive Property,
8(x+2)=36

becomes
8x+16=36.
Now we need to isolate x. Remember PEMDAS?
8x=20
x=20/8
Simplify the right side.
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y ≤ 1 + 2x is the answer

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Solve kx + 9 = 7 for x.
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Kx+9=7
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A fraction that is a multiple of 4/5 is 8/10, because you multiply both numbers by two.
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3 years ago
What's the answer -5+ 8x - 9 = 3x+3)​
Vika [28.1K]
We collect like terms
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This is bcos if a (-) sign crosses the equals sign it becomes a (+), and if a (+) sign crosses the equals sign it becomes (-)
We the have
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x = 17/5
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5 0
3 years ago
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