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I need help finding the answer to this

I need help finding the answer to this-example-1

1 Answer

9 votes

Answer:

Explanation:

Remark

If the figures are similar then this is a proportion question. A proportion is 2 equation ratios. The ratios can have at most 1 unknown.

Givens

DC = 7

ML = 4.9

AB = 4

JK = x

Equation

DC/ML = AB/x Substitute values into equation and solve

Solution

7/4.9 = 4/x Cross Multiply

7x = 4 * 4.9 Combine the right.

7x = 19.6 Divide by 7

7x/7 = 19.6/7

x = 2.8

Answer

x = 2.8

User Paul Price
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