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3 years ago

Solve for x. Show all work

Mathematics

1 answer:

Rudiy273 years ago

3 0

9514 1404 393

Answer:

x = 12

Step-by-step explanation:

Triangle DGH is isosceles with base angles at D and G. The external angle 134° at H is the sum of those two base angles, so we have ...

2(5x+7) = 134

5x +7 = 67 . . . . . divide by 2

5x = 60 . . . . . . . subtract 7

x = 12 . . . . . . . . divide by 5

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Answer:

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Step-by-step explanation:

Given:

Students who attend Washington Middle School are either in seventh or eighth grade.

At the end of the first semester 25% of the students at Washington Middle School were on the honor roll.

Seventh graders represented 60% of the students on the honor roll.

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So, the students at Washington Middle School were on the honor roll:

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So, the students on the honor roll represented as seventh graders:

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Thus,

According to question:

$\frac{x}{4} -\frac{0.6x}{4} =124$

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