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Doss [256]
3 years ago
13

What is the first step in solving the equation: 3(x+2) = 12?

Mathematics
1 answer:
yanalaym [24]3 years ago
4 0

Answer:

Divide by 3 on both sides.

Step-by-step explanation:

Original Expression: 3(x+2) = 12

Divide by 3 on both sides: x+2 = 4

Subtract 2 from both sides: x=2

Let me know if this helps!

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Marty has 1/2 pound of raisins to divide equally into 1o different bags. What fraction of a pound will be in each bag?
pogonyaev

Answer:

1/20 in each bag because you said that Marty had 10 diffrent bags

Step-by-step explanation:

3 0
3 years ago
HELP WILL GIVE BRAINLIEST FOR ANSWER QUICKLY PLEASE HELP
Helen [10]

Answer:

We have sinθ = 12/13

The  method here is to figure out the value of θ

Using a calculator sin^(-1)(12/13) =67.38°

67.38° is in quadrant 1  so we must substract 67.38° from 180° wich is π

  • 180-67.38= 112.61° ⇒ θ= 112.61°

Now time to calculate cos2θ and cosθ using a calculator

  • cosθ = -5/13
  • cos2θ =  -0.7

The values we got make sense since θ is in quadrant 2 and 2θ in quadrant 3

5 0
3 years ago
Solve 5x-9y=13 for y.
scoundrel [369]

Answer:

y =  \frac{5x - 13}{9}

Step-by-step explanation:

5x - 9y = 13 \\  5x - 13 = 9y \\  \frac{5x - 13}{9}   = \frac{9y}{9}  \\ y =  \frac{5x - 13}{9}

3 0
3 years ago
Mike is twice as old as his sister. Together, their ages add up to 30. How old are Mike and his sister?
givi [52]

Answer:

The sister is 10 and Mike is 20

Step-by-step explanation:

10 x 2 = 20

10 +20 = 30

6 0
2 years ago
Read 2 more answers
Three equivalent ratios to 10/12 simplistic form
11Alexandr11 [23.1K]
<h2><u>Answer:</u></h2><h3>Equivalent Ratios:</h3>

20/24, 30/36 & 40/48  

<h3>Simplest Form:</h3>

5/6

<h2><u>Step-by-step explanation:</u></h2><h3>Equivalent Ratios:</h3>

10 × 2 / 12 × 2 = 20/24

10 × 3 / 12 × 3 = 30/36

10 × 4 / 12 × 4 = 40/48

<h3>Simplest Form:</h3>

10 ÷ 2/ 12 ÷ 2 = 5/6

8 0
3 years ago
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