3 years ago

The sum of 3 consecutive numbers is 21. Write and solve an equation that represents the situation.

Mathematics

1 answer:

Lady bird [3.3K]3 years ago

3 0

Answer:

I don't know if you want it with variables or the actual #s but here ya go...

a+b+c=21

6+7+8=21

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Ivan

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the piano: 3/4 of 8 hours = 3/4 * 8 hours = 6 hours

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2 years ago

Which graph represents the solution set of the system of inequalities? <br> {−2x+y≤4<br> {y>x+2

Marat540 [252]

The answer is

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3 years ago

Easy question i will mark braineliest

Yuki888 [10]

Answer:

Step-by-step explanation:

$5(y - 3.8) = 4.7(y - 4)$

Distribute 5 through the parentheses

$5y - 19 = 4.7(y - 4)$

Distribute 4.7 through the parentheses

$5y - 19 = 4.7y - 18.8$

Move ' 4.7 y ' to L.H.S and change it's sign

$5y - 4.7y - 19 = - 18.8$

Move constant to R.H.S and change it's sign

$5y - 4.7y = - 18.8 + 19$

Collect like terms

$0.3y = - 18.8 + 19$

Calculate

$0.3y = 0.2$

Divide both sides of the equation by 0.3

$\frac{0.3y}{0.3} = \frac{0.2}{0.3}$

Calculate

$y = 0.67$

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3 0

3 years ago

Read 2 more answers

8.-10 + 0.22 can someone help me again

grigory [225]

Answer:

8.10+0.22

Is 8.33

Step-by-step explanation:

6 0

3 years ago

solve for the indicated variable. include all of your work in your answer. submit your solution. P=2L+2W; for L.

allochka39001 [22]

We have this equation:

$P=2L+2W$

So, we need to solve this equation for L. Then we sum -2W in each member of the equation, like this:

$P-2W=2L+2W-2W$
$P-2W=2L$

Then, dividing the equation by 2:

$\frac{P-2W}{2}=L$

Finally, let's order this equation:

$L=\frac{P-2W}{2}$

4 0

2 years ago

The sum of 3 consecutive numbers is 21. Write and solve an equation that represents the situation.​

The sum of 3 consecutive numbers is 21. Write and solve an equation that represents the situation.