Question

Please help with these four math questions ive tried for an hour.?

Question 17 (Multiple Choice Worth 3 points)

[3.02] MA.7.A.5.1

Convert two point six eight to a mixed number.

two and sixty-eight tenths

two and ten sixty-eighths

two and seventeen twenty-fifths

two and seventeen over two hundred fifty

Question 18 (Multiple Choice Worth 3 points)

[3.03] MA.7.A.3.2

Add negative eleven-twelfths plus three-fourths.

negative one and two-ninths

negative eleven-sixteenths

negative one and two-thirds

negative one-sixth

Question 19 (Multiple Choice Worth 3 points)

[3.07] MA.7.A.5.2

A group of friends were voting for their favorite song: one-half chose song A, one-third of the remaining friends chose song B, and the rest chose song C. If there were twenty-four friends in all, how many chose song C?

4

8

twelve

eighteen

Question 20 (Multiple Choice Worth 3 points)

[3.06] MA.7.A.3.3

Solve t divided by fifteen equals one and two-fifths.

seven seventy-fifths

three and one-fifth

3

twenty-one

Answer

[3.02] MA.7.A.5.1

number is 2.68

fraction is 0.68 = 68/100

mixed number is 2 68/100

cancel down 2 34/50

cancel down 2 17/25

[3.03] MA.7.A.3.2

-11/12 + 3/4 = -11/12 + 9/12 = (-11 + 9)/12 = -2/12 = -1/6

[3.07] MA.7.A.5.2

(1/2) of 24 chose A, so 12 chose A

of the remaining 12, (1/3) chose B, so 4 chose B

leaving 8 to choose C

[3.06] MA.7.A.3.3

t/15 = 1 2/5

t/15 = 7/5

t = 15 * 7/5

t = 3*7

t = 21

Unanswered