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valina [46]
3 years ago
5

PLEASE HELPP!!

Mathematics
1 answer:
likoan [24]3 years ago
6 0

Answer:

A: s=75w

B: s= 75(16)

s=1200

Step-by-step explanation:

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What is the solution of the system. Use the substution method. 3x+2y=11, x-2=-4y
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Answer:

x=\frac{10}{3} and y=\frac{1}{2}

Step-by-step explanation:

  • To use the substitution method, we should take one of the equations, and obtain an expression for one of the variables from this equation. Let's take the first one: 3x-2y = 11. We obtain an expression for x (it could be for y as well):  3x = 11 + 2 y ⇒ x=\frac{11}{3}+\frac{2}{3} \times{y}.
  • Now, we should replace the expression obtain for x in the first equation, on the second equation, as follow
  • x-2=4y⇒ (\frac{11}{3}+\frac{2}{3}\times{y})-2=4\times{y}
  • Then rearranging terms \frac{11}{3}-2=4\times{y}-\frac{2}{3}\times{y}
  • This expression results in y=\frac{1}{2}
  • Finally, using the firs equation, in which we obtained an expression from x, x=\frac{11}{3}-\frac{2}{3} \times{y}, we replace y=1/2 and get x=\frac{11}{3}- \frac{2}{3}\times{\frac{1}{2} }, then x=\frac{10}{3}

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3 years ago
The pie recipe calls for twice as many peaches as nectarines. If it takes a total of 168 pieces of fruit for all the pies, how m
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Solve for x.<br><br> Captionless Image<br> x= 6<br> x = 0<br> x= 5<br> x= 10
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Step-by-step explanation:

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4 0
2 years ago
Read 2 more answers
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