1 year ago

Please help for 50 POINTS!!!!

Mathematics

1 answer:

Debora [2.8K]1 year ago

7 0

Solution:

We know that:

Sum of interior angles of triangle: 180°
Those 2 bars drawn on GH and IH defines that GH = IH.

This means that:

The triangle is an isosceles triangle.
The bottom two angles are equal.

Equation created: 58 + x + x = 180

Simplify the LHS.

58 + x + x = 180
=> 58 + 2x = 180

Subtract 58 both sides.

58 - 58 + 2x = 180 - 58
=> 2x = 122
=> x = 61

Thus, the measure of ∠GIH is 61°.

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2 years ago

A store manager is marking down chess boards from $25 to $14. What percentage is the discount?

Alborosie

Remember: when calculating percent it will always be over 100. With the given numbers 14 is your part out of the total (25). It should be written as part/whole.

As previously said, the percent is always over 100. (x/100)

In this problem you are given the part (14) and the whole (25). So it would be 14/25. The percent in this problem would be x/100. Now to find percent with the given part/whole, you would multiply 14 with 100. Then simply divide by 25.