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tekilochka [14]
3 years ago
12

Which of the following could be the first steps toward solving the system,4x+y=30, -12x+2y=20

Mathematics
2 answers:
bekas [8.4K]3 years ago
7 0
B is the correct statement to start with. It will eliminates y.
Crank3 years ago
7 0
          hello hers is a solution :                         

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What is the unit rate for the proportional relationship represented by the equation y=4/5x
slava [35]

Answer:

<em>the unit rate is 0.8x per unit y</em>

<em></em>

Step-by-step explanation:

the proportional relationship is y = \frac{4x}{5}

this means that the constant of proportionality k = \frac{4}{5} = 0.8

re-writing, we have

<em>y = 0.8x</em>

<em>therefore, the unit rate is 0.8x per unit y</em>

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5 0
2 years ago
Read 2 more answers
Please help me on this question as soon as possible
lbvjy [14]
First move the 14 over so 1/3s = 12 then do 12 divided by 1/3, that would be 36 so s=36
7 0
3 years ago
Molly walked 3.45 miles on a hike. Her sister walked 1.23 miles. Her brother walked 0.85 miles. Round each distance to the neare
Marina CMI [18]
3.45 rounded to the nearest tenth is 3.5.
1.23 rounded to the nearest tenth is 1.2.
0.85 rounded to the nearest tenth is 0.9.
To find how much further Molly walked than her brother and sister combined, you'd have to combine the amount of miles Molly's brother and sister walked:
1.2 + 0.9 = 2.1
Next, you would have to subtract Molly's amount of miles walked with the combination of her brother and sister's miles walked:
3.5 - 2.1 = 1.4
So, Molly walked 1.4 more miles on her hike than her brother and sister had walked combined.
4 0
3 years ago
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