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pshichka [43]
3 years ago
7

I need help solving this! I need and answer fast

Mathematics
1 answer:
shusha [124]3 years ago
3 0
Solve the porportions. First, cross multiply

7/(x - 4) = 42/12

(7/(x-4))(x-4)(12) = (42/12)(12)(x-4)

7(12) = 42(x-4)

Simplify. (remember to distribute the 42 to both x and -4

84 = 42x - 168

Isolate the x. First add 168 to both sides

84 (+168) = 42x - 168 (+168)

42x = 84 + 168

42x =  252

Finally, isolate the x by dividing 42 from both sides

42x/42 = 252/42

x = 252/42

x = 6

6 is your answer

hope this helps
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On a coordinate plane, a parabola opens up. Solid circles appear on the parabola at (negative 4, 14), (negative 3, 9. 5), (negat
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The rate of change for the interval between 2 and 6 on the x-axis is 3.

Given

On a coordinate plane, a parabola opens up.

Solid circles appear on the parabola at (negative 4, 14), (negative 3, 9. 5), (negative 2, 6), (0, 2), (1, 1. 5), (2, 2), (4, 6), (5, 9. 5), (6, 14).

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A rate of change defines how one quantity changes in relation to another quantity.

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brainly.com/question/16549411

8 0
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Eric and Linda are paid 52.25 for they're work. Eric worked 3.5 hours, and Linda worked 2 hours. They split the money according
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<u>$33.25</u>

Step-by-step explanation:

Taking Eric's hours as a ratio to the total hours :

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Multiply the ratio into the amount paid :

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4 0
3 years ago
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Answer:

tanI = \frac{\sqrt{70} }{5}

Step-by-step explanation:

We require to calculate GH using Pythagoras' identity in the right triangle.

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GH² = 70 ( take square root of both sides )

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Then

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