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mestny [16]
3 years ago
10

Solve each system of linear equations by substitution. x+2y=6 2x+4y=12

Mathematics
1 answer:
son4ous [18]3 years ago
6 0

Answer:

see the attached picture

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BlackZzzverrR [31]
X = 8, this is because 8 * 8 = 64 - 64 = 0
3 0
3 years ago
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Which of the following statements is true about the division expression 686.54 ÷ a? A. If a is a number greater than 686.54, the
borishaifa [10]

Answer:

D-- if a is a number between 0 and 1, the quotient will be greater

Step-by-step explanation:

5 0
4 years ago
1 2 (–1.4m + 0.4) = m + 0.2
allsm [11]

First, you need to get rid of the parenthesis, so you need to distribute:

12(–1.4m + 0.4) = m + 0.2

-16.8m + 4.8 = m +0.2

Then subtract both sides by m:

-16.8m - m + 4.8 = m +0.2 - m

-17.8m + 4.8 = 0.2

Subtract both sides by 4.8:

-17.8m + 4.8 - 4.8 = 0.2 - 4.8

-17.8m = -4.6

Now, divide both sides by -17.8:

-17.8m/-17.8 = -4.6/-17.8

m ≈ 0.258

8 0
3 years ago
I need help with number 4
gtnhenbr [62]

Answer:

2e3rfe43rdefde

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Inverse equation t=120r/r+120 R=???
Komok [63]

9514 1404 393

Answer:

  r = 120t/(120-t)

Step-by-step explanation:

Multiply by the denominator, isolate r terms, then divide by the coefficient of r.

  t=\dfrac{120r}{r+120}\qquad\text{given}\\\\t(r+120)=120r\qquad\text{multiply by $(r+120)$}\\\\120t=120r-tr\qquad\text{subtract $tr$}\\\\\dfrac{120t}{120-t}=r\qquad\text{divide by the coefficient of $r$}\\\\\boxed{r=\dfrac{120t}{120-t}}

7 0
3 years ago
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