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Genrish500 [490]
3 years ago
15

3(3b +2)=-30 what is b =

Mathematics
1 answer:
ycow [4]3 years ago
4 0
3(3b+2)=-30  perform indicated multiplication on left side...

9b+6=-30  subtract 6 from both sides

9b=-36  divide both sides by 9

b=-4
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Find the values of x and y that satisfy the equation.
HACTEHA [7]

Answer:

x=-5-2yi/3+4i

y=3xi/2+6+15i/2

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

5 0
3 years ago
Please answer fast
dsp73

Answer:

A haircut costs $31

Coloring hair costs $93

Step-by-step explanation:

h = haircut

c = color

First equation: 1h + 2c = 217

Second equation: 2h + 1c = 155

Solve using elimination:

First, multiply both the equations so that they cancel the h's out:

First equation:

-1(2h + 1c = 155)

-2h - 1c = -155

Second equation:

2(1h + 2c = 217)

2h + 4c = 434

Then, put the equations together, and solve:

2h + 4c = 434

-2h - 1c = -155

3c = 279

c = 93

Find h:

2h + 1c = 155

2h + 1(93) = 155

2h + 93 = 155

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h = 31

Hope this helped!

5 0
3 years ago
What is the slope and the Y intercept of -12x-4Y=10
denis-greek [22]
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-12x - 4y = 10
+12x          +12x

-4y = 12x + 10
/-4          /-4

y = -3x - 10/4

3 0
4 years ago
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Sholpan [36]
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Answer:

25%

Step-by-step explanation:

350/1400=0.25*100%(to make into a percent)=25%

5 0
4 years ago
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