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The Mathematics Section

^x+ . 25h+ x=

1.

25

2x

+ . 25=

125 .

2x

= 100 .

x=

. 50

But x is the cost of the ball. Notice that $.50 is one of the choices, B. Because

x= . 50, then x+ . 25= . 75. Therefore the bat costs $.75, which is choice C.

Always answer the question being asked. Circling the key word or words can help

you do that.

5. Tia is trying to round off the number 4,547 to the nearest hundred. If she

gets the right answer, she receives extra credit. What answer must Tia get

to receive extra credit?

A. 5,000

B. 4,600

C. 4,550

D. 4,500

E. 4,540

To round off to the nearest hundred, you must check to see whether the tens place

is 5 or more. If it is 5 or more, you round the hundreds place up one number and

put zeros in back — 4,500. The correct answer is D.

Pull Out Information

Pulling information out of the word problem structure often gives you a better

look at what you’re working with; therefore, you gain additional insight into the

problem.

Samples

6. If a mixture is 3 ⁄7 alcohol by volume and 4 ⁄7 water by volume, what is the

ratio of the volume of alcohol to the volume of water in this mixture?

A. 3/7

B. 4/7

C. 3/4

D. 4/3

E. 7/4

43

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