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Mashutka [201]
3 years ago
10

How do you find x in the equation 3x+21=42 Plz help will mark brianltes

Mathematics
2 answers:
Rus_ich [418]3 years ago
4 0

Answer:

3x=21

X=7

Step-by-step explanation:

irinina [24]3 years ago
3 0

Answer:

X=7

Step-by-step explanation:

3x=21

x=7

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Solve for c 6/15=2/c
saul85 [17]
\frac{6}{15} = \frac{2}{c}   Multiply both sides by 15
6 = \frac{30}{c}   Multiply both sides by c
6c = 30   Divide both sides by 6
c = 5   
7 0
3 years ago
Please help me asap​
tresset_1 [31]

Answer:

1\2.

Step-by-step explanation:

change in y over change in x. so 13 - 11 over 6 - 2. 2/4 --.> 1\2.

6 0
3 years ago
I am a multiple of 5, but not a
damaskus [11]

Answer:

515

Step-by-step explanation:

If it's a multiple of five and not ten, that would be the units digit must be 5. Hundreds=units. 11-10=1. So the answer is 515

3 0
3 years ago
write an equation in point-slope form for the line through the given point with the given slope (10,-9);m=-2​
fgiga [73]

Answer:

The answer is

<h2>y + 9 =  - 2(x - 10)</h2>

Step-by-step explanation:

To find the equation of a line given a point and slope we use the formula

<h3>y - y1 = m(x - x1)</h3>

where

m is the slope

( x1 , y1) is the point

From the question

Slope / m = - 2

The point is ( 10, - 9)

Substitute the values into the above formula

That's the final answer is

<h3>y + 9 =  - 2(x - 10)</h3>

Hope this helps you

5 0
3 years ago
There are 2 red balls and 5 green balls. Write the ratio of red to green balls
Marina86 [1]
 The ratio of red to green is 2:5
5 0
3 years ago
Read 2 more answers
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