/

Which of the following is 31% of 426?

A. 425.69

B. 132.06

C. 13.7

D. 0.07

Answer Explanation:

First convert 31% to a decimal before working on the problem

31%=31/100=0.31

Thus, 31% of 426=0.31*426=132.06

Therefore, the Correct Answer is B.

Q #1: The force applied is directly proportional to the stretch of a coil. If a force of 132 Newtons stretches a coil 0.07 meters, what force would be needed to stretch a coil 0.1 meter? Round your answer to the nearest tenth.

A. 92.4 Newtons

B. 1885.7 Newtons

C. 188.6 Newtons

D. 136.0 Newtons

Answer Explanation

In direct proportion relation, we utilize the relationship as:

Variable∝ Variable 2

Thus from the given case,

Force∝ stretch

We introduce a constant term, K to remove the sign of proportionality as

Force=K* stretch

Let’s find the value of K, using Force=132 N and stretch of 0.07 m

132 N=K*0.07 m

K=132 N/0.07 m=1885.7 N/m

Now substitute this value of K in the following equation

Force=1885.7 N/m * stretch

For a stretch of 0.1 m, the force needed is

Force=1885.7 N/m * 0.1 m=188.57 N=188.6 N
Q #2: Which of the following expressions represents the sum of three times a number and eight times a different number?

A. 3x+8y

B. 8x+3x

C. 3x-8y

D. 8x-3y

Answer Explanation

Let two numbers be x and y. Then

Three time a number=3x

Eight times a different number = 8y

Sum of the two is 3x+8y
Q #3: Which of the following percentages is equivalent to 5 ¼ ?

A. 525%

B. 514%

C. 5.25%

D. 5.14%

Answer Explanation

The percent equivalent of a fraction is obtained by multiplying the by frication by 100%.

Convert 5 ¼ into improper faction as follows

So, the percent equivalent is:

Free Access on TEAS 7 Exams and Study Notes

Access to all TEAS 7 Exams
Performance Tracking and Analysis
Well Documented and Explained Questions and Answers
2000+ Questions and Correct Answers: Answers Well Explained
Libary of Detailed StudyNotes
Topical Questions and Answers on Examinable topics

Join Now