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nekit [7.7K]
3 years ago
12

!!Look at the photo please!!

Mathematics
1 answer:
Arlecino [84]3 years ago
8 0

Answer:

it is c

Step-by-step explanation:

I have took this test and I got the answer right so that should be right your welcome

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During summer vacation, you charge people $8 per hour for babysitting and $10 for going to their house. If you make $50 one day,
ioda

Answer: You spent 5 hours babysitting.

Step-by-step explanation:

This situation can be represented by the  equation  y = 8x+ 10  where y is the money you earn and x is the  number of hours.

So if  y is equation to fifty dollars then what is x ?

50 = 8x +10    subtract 10 from both sides.

-10           -10

40 = 8x

x = 5

       

6 0
3 years ago
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(08.03) Consider the following pair of equations:
Luba_88 [7]

Substitution method is used to solve the linear system of equations for one or more variables.

Consider the first equation y = 3x + 3 -----(1)

In equation (1) plug in y=x-1, we get

x -1 = 3x + 3

Add -3x on both side , we get

x-3x -1 = 3x-3x +3

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Now add +1 on both sides, we get

-2x-1+1= 3+1

-2x + 0 =4

Now divide both side by -2

-2x/-2= 4/-2

X= -2

Now put x=-2 in the the second equation,

y=x-1

y=(-2)-1

y=-3

Solution(-2,-3)

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3 years ago
Perform the operation.<br> (9x2 + 6x – 7) + (-9x - 5)<br><br> PLS HELP ASAP PLS
qaws [65]

Answer:

21

Step-by-step explanation:

(9x2 + 6x – 7) + (-9x - 5) = 21

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