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julia-pushkina [17]
3 years ago
11

Please help with 4-9!!!

Mathematics
2 answers:
8090 [49]3 years ago
7 0

<u>Answer:</u>

4. m = 10

5. q = 133

6. z = -143

7. c = 25

8. t = 52

9. p = 8

<u>Step-by-step explanation:</u>

4) \frac{3m+15}{2} = 22.5

3m = 2(22.5)-15

m=\frac{30}{3}

m=10


5) 21=\frac{q+35}{8}

168-35= q

q=133


6) 14+\frac{4z}{-11} =66

\frac{4z}{-11} = 66-14

4z= 52 * -11

z= \frac{-572}{4}

z= -143


7) \frac{3}{5c} -6=9

\frac{3}{5c} =9+6

3c=15*5

c=\frac{75}{3}

c=25


8) \frac{t}{-2} +17 = -9

\frac{t}{-2} = -9-17

t= -26 * -2

t=52


9) -6=\frac{5p-(-2)}{-7}

42=5p+2

5p=42-2

p=\frac{40}{5}

p= 8

olya-2409 [2.1K]3 years ago
6 0

sdfsdf

4) \frac{3m+15}{2} = 22.5

Multiply by 2 on both sides

3m + 15 = 45

Subtract both sides by 15

3m = 30

Divide both sides by 3

so m = 3

5) 21= \frac{q+35}{8}

Multiply both sides by 8

168 = q + 35

Subtract both sides by 35

q = 133

6) 14 + \frac{4z}{-11} = 66

Subtract 14 from both sides

\frac{4z}{-11} = 52

multiply by -11 on both sides

4x = 572

Divide both sides by 4

x= 143

7) \frac{3}{5} c - 6 = 9

Add 6 on both sides

\frac{3}{5} c  = 15

Multiply both sides by 5

3c = 75

Divide both sides by 3

c = 25

8) \frac{t}{-2} + 17 = -9

Subtract both sides by 17

\frac{t}{-2} =26

Multiply both sides by -2

t = -52

9) -6 = \frac{5p-(-2)}{-7}

Multiply both sides by -7

42= 5p + 2

subtract 2 from both sides

40 = 5p

Divide both sides by 5

so p = 8






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