Mathematical Problem Solving Techniques

The video tutorial covers various math problems, including fraction addition, combining like terms, calculating teacher salaries, finding average scores, determining oxygen saturation, calculating perimeters, simplifying expressions, solving equations, and computing the volume of a sphere. Each section provides step-by-step solutions, often using a calculator, and emphasizes understanding mathematical concepts and procedures.

What edition of the ACT practice tests is being discussed?

• Tenth

• Fifth

• Second

• First

How many miles did Shannon walk in total over two days?

• 5 miles

• 3 2/5 miles

• 4 4/15 miles

• 4 miles

What is the result of adding 2/3 and 3/5 without a calculator?

• 19/15

• 4/5

• 1 2/3

• 1 4/15

What is the combined result of 4x^3, 3x, and 2x?

• 24x^5

• 24x^4

• 24x^3

• 24x^6

How much does the school save by using a substitute teacher for a day?

• $102

• $200

• $85

• $187

What score is needed on the fifth test to average 80?

• 86

• 87

• 88

• 85

What is the oxygen saturation percentage of the lake?

• 67%

• 70%

• 64%

• 60%

What is the perimeter of a rectangular lot measuring 125 feet by 185 feet?

• 310 feet

• 500 feet

• 620 feet

• 370 feet

What is the simplified form of a(P - C + D)?

• aP - aC - aD

• aP + aC - aD

• aP - aC + aD

• aP + aC + aD

What is the value of X if 6X - 3 = -5X + 7?

• 1

• 0

• 11/10

• 10/11