# Tutor profile: Bethany H.

## Questions

### Subject: Pre-Algebra

The measure of an angle is 77 degrees. What is the measure of a supplementary angle?

Two angles are supplementary when they add up to to 180 degrees. Let x be the other angle. 77 + x = 180 x = 180 - 77 x = 103 degrees. So, the required angle is 103 degrees.

### Subject: Basic Math

The perimeter of the equilateral triangle is 18 cm. Find the length of each side. (Hint equilateral triangle have equal sides.)

Perimeter of the equilateral triangle = 18 cm side 1 = a side 2 = a side 3 = a total perimeter = 18 a + a + a = 18 3a = 18 a = 18/3 a = 6 So, the length of each side is 6cm.

### Subject: Algebra

Write an algebraic expression for: eight less than the product of 6 and a number is 5. DO NOT SOLVE FOR X.

Explanation: "Less than" implies that that number will come after what is next. something - 8 "The product of" implies multiplication, and in this case, you would replace "a number" with a value, such as x. (6 times x) - 8 (6x) - 8 The final part, equals, (add the equal sign) (6x) - 8 = 5