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jekas [21]
3 years ago
7

Each of these is a pair of equivalent ratios for each pair explain why they are equivalent A: 4:5 and 8:10

Mathematics
1 answer:
alisha [4.7K]3 years ago
5 0
They are equivalent because 4:5 can both be multiplied by 2 making 8:10.
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For the table below, determine the function rule, and find each of the missing y-values.
anygoal [31]
The answer is 8 and 13

<span>
y = ax + b
y = 4, x = 1        </span>⇒  4 = a + b
y = 6, x = 3       ⇒  6 = 3a + b

Solve the system of equation:
a + b = 4
3a + b = 6
______
b = 4 - a
3a + b = 6
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3a + 4 - a = 6
2a + 4 = 6
2a = 6 - 4
2a = 2
a = 2/2 = 1
b = 4 - a = 4 - 1 = 3

So, the function rule is: y = x + 3

Thus, if x = 7, then y = 7 + 3 = 10
If x = 10, then y = 10 + 3 = 13


x y
1 4
3 6
4 7
5 8
7 10
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3 years ago
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galina1969 [7]
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6 0
2 years ago
P=s1+s2+s3 solve for s3
tresset_1 [31]

P=s1+s2+s3

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Need help...!! plzzz
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This is true sometimes and false sometimes, depending on the numbers.
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