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hichkok12 [17]
2 years ago
6

A direct variation function includes the ordered pair (4, 5). Which statement is true? The constant of variation k is mc001-1.jp

g. The constant of variation k is mc001-2.jpg. It is not possible to determine the constant of variation from the information given.
Mathematics
2 answers:
iogann1982 [59]2 years ago
8 0

Answer:

The constant of variation k is 5/4.

devlian [24]2 years ago
7 0
A direct variation suggest that the value of x in the equation would greatly affect the value of y such that when x is increasing, y also increases and the other way around. The equation for a direct variation is that,
                               y  = kx
Substituting the given values in the ordered pair,
                           5 = k(4)   ; k = 5/4
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On a car trip, Ben drove 65 miles more than half the number of miles Steve drove. Together they drove 500 miles. How many miles
tatyana61 [14]

Answer:

210 miles

Step-by-step explanation:

Let's represent it mathematically.

Ben drove 65 miles more than half the number of miles Steve drove, so we represent it by

B = 65 + ½S

It is also said that together, they drove 500 miles, we represent it with.

B + S = 500

Now, we solve simultaneously.

Let's eliminate the ½ in Ben's drive. So we multiply the equation by 2.

2B = 130 + S.

Rearranging, we have

S = 2B - 130.

We substitute this value of S, in the second equation. So we have.

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Therefore, Ben drove 210 miles.

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7 0
3 years ago
Solve this equation 6(4.5y-12)=9
irinina [24]
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6 0
3 years ago
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