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2 years ago

What is the value of x? Enter your answer in the box. x =

Mathematics

1 answer:

d1i1m1o1n [39]2 years ago

6 0

Answer:

x=20

Step-by-step explanation:

We can use similar triangle to find x. Put the smaller triangle over the larger triangle.

11 10

-------- = ----------

121+11 10 +5x+10

Combine like terms

11 10

-------- = ----------

132 20+5x

Using cross products

11 (20+5x) = 132*10

Distribute

220 +55x = 1320

Subtract 220 from each side

220-220 +55x = 1320-220

55x = 1100

Divide by 55

55x/55= 1100/55

x =20

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