1. Joan spent Monday and Tuesday shopping. She spent a total of $115. She spent $47 more on Monday than she did on Tuesday. How much did she spend on Tuesday?
a. $68
b. $162
c. $34
d. $81
e. $115 Correct Answe
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1. Joan spent Monday and Tuesday shopping. She spent a total of $115. She spent $47 more on Monday than she did on Tuesday. How much did she spend on Tuesday?
a. $68
b. $162
c. $34
d. $81
e. $115 Correct Answer: We are simply looking for 2 numbers that when added together, we get 115. Also, one number is 47 more than the other. Let x represent the smaller number, then x + 47 would be the larger, so we have the equation:
x + x + 47 = 115
Combine the x with the other x gives:
2x + 47 = 115
Subtract 47 from both sides.
2x = 68
Divide each side by 2 gives:
x = 34
2. Mrs. Johnson needs 4 blue paper circles for each student in her class. She can cut 6 of these circles from each piece of blue paper she is using. If there are 32 students in her class, how many pieces of blue paper will she need?
a. 32
b. 10
c. 22
d. 36
e. 21 Correct Answer: She needs a total of 32 x 4 or 128 circles. 6 can be cut from 1 paper, so divide 128 by 6 and you get 21 and a small remainder. Forget the remainder, you KNOW you will have to use 1 more paper for make up for that remainder. The answer will be 21 + 1 or 22. 21 may look attractive, but where would the little extra come from?
3. Bob is stapling packets for his students. He can staple one complete packet in about 3 minutes. About how long will it take him to staple enough packets for his class of 30 students?
a. 1 hour 20 minutes
b. 1 hour 30 minutes
c. 2 hours 20 minutes
d. 2 hours 9 minutes
e. 3 hours Correct Answer: Multiply 3 x 30 = 90. It will take 90 minutes. But the answers are in hours, 60 minutes to an hour, so the answer must be 1 hour 30 minutes.
4. A certain square has an ar
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