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Solve. 1) 7x = 21

Question : Solve. 1) 7x = 21 : 2151658

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Solve.

1) 7x = 21

A) 3

B) 14

C) 147

D) 28

2) -4z = 32

A) -36

B) -8

C) 36

D) 1

3) 4u = -76

A) 80

B) -80

C) -19

D) 1

4) -3y = -51

A) 48

B) 2

C) -48

D) 17

5) -12t = 0

A) 0

B) 12

C) -12

D) 1

6) 0.9x = -900

A) -100

B) -10

C) -1000

D) -9000

7) -3.3y = -29.7

A) 2

B) 26.4

C) 9

D) -26.4

8) 0.9 = -72z

A) -0.125

B) -8

C) -80

D) -0.0125

9) 4/3x = -8

A) – 32/3

B) -8

C) 6

D) -6

10) 1/5t = -3

A) -7

B) -8

C) 0

D) -15

11) – 1/9r = -2

A) 0

B) -11

C) 18

D) -12

12) 5/4x = 10/20

A) 2/5

B) – 2/5

C) 5/8

D) 1

13) 9/4x = - 2/9

A) 8/81

B) – 8/81

C) 1/2

D) – 1/2

Solve. First combine any like terms on each side of the equation.

14) 4x - 9x = 10

A) -2

B) 10/13

C) – 10/13

D) 2

15) 4y - y = -18

A) 4

B) -6

C) 6

D) -4

16) 3x = 1.3 + 1.1

A) 0.08

B) 0.8

C) 8

D) 0.9

17) 35 + 7 = 6x

A) 40

B) 36

C) 7

D) 12

18) 27 - (-3) = 10y

A) 20

B) 5

C) 24

D) 3

19) 8x - 13x = 17 - 12

A) 5

B) -1

C) -5

D) 1

20) 9z + z = 8 - 88

A) -8

B) 8

C) -10

D) 10

21) 75 + (-15) = -5x + x

A) 1

B) 80

C) -80

D) -15

22) 1/3x = 8 + 4

A) 24

B) 36

C) 48

D) 12

23) – 1/2z = -15 + 6

A) 30

B) 18

C) 42

D) 6

Solve.

24) The equation d = r.t describes the relationship between distance d in miles, rate in miles per hour, and time in hours. The distance between two corporate offices, by road, is approximately 1040 miles. How long will it take to drive from one office to the other if the driver maintains a speed of 65 miles per hour?

A) 15 hr

B) 975 hr

C) 17 hr

D) 16 hr

Solution
5 (1 Ratings )

Solved
Mathematics 3 Months Ago 27 Views
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