Question

name
solve each problem below.

1. a fifth grade class had a 3 month reading competition. they read a total of 258.45 pounds of books. the first month they read 124.075 pounds of books and the second month they read 98.5 pounds of books. how many pounds of books did they read in the third month?

a. 222.575 pounds
b. 134.375 pounds
c. 98.23 pounds
d. 35.875 pounds

1. sandy had 4.5 pounds of candy. donna had 2.5 times as much candy as sandy. donna gave her mom 2.5 pounds of her candy. how many pounds of candy did donna have then?

a. 2 pounds
b. 6.5 pounds
c. 8.75 pounds
d. 11.25 pounds

1. kelly walked 3 kilometers on saturday and 2.5 kilometers on sunday. bonnie walked 0.25 the total distance that kelly walked on saturday and sunday. how far did bonnie walk?

a. 1.375 kilometers
b. 3.25 kilometers
c. 5.5 kilometers
d. 5.75 kilometers

1. kevin ran 0.50 the time that duke ran. if duke ran 0.1 seconds faster than bill and bill ran 7.8 seconds, how fast did kevin run?

a. 3.95 seconds
b. 3.85 seconds
c. 38.5 seconds
d. 39.5 seconds

Explanation:

Problem 1

Step1: Find sum of first two months

To find the total pounds of books read in the first two months, we add the pounds read in the first month (\(124.075\)) and the second month (\(98.5\)).
\(124.075 + 98.5 = 222.575\)

Step2: Subtract from total to find third month

The total pounds of books read in three months is \(258.45\). To find the pounds read in the third month, we subtract the total of the first two months from the three - month total.
\(258.45-222.575 = 35.875\)

Step1: Find Donna's initial candy

Sandy has \(4.5\) pounds of candy. Donna has \(2.5\) times as much as Sandy. So we multiply Sandy's candy by \(2.5\).
\(4.5\times2.5=11.25\)

Step2: Subtract the candy given to mom

Donna gave her mom \(2.5\) pounds. So we subtract \(2.5\) from her initial amount.
\(11.25 - 2.5=8.75\)

Step1: Find Kelly's total distance

Kelly walked \(3\) kilometers on Saturday and \(2.5\) kilometers on Sunday. We add these two distances to find her total distance.
\(3 + 2.5=5.5\)

Step2: Find Bonnie's distance

Bonnie walked \(0.25\) of Kelly's total distance. So we multiply Kelly's total distance by \(0.25\).
\(5.5\times0.25 = 1.375\)

Answer:

D. 35.875 pounds

Problem 2