2.-8x + 2y = -4 -2x + 1/2y = -1 Solve using substitution

Mathematics

1 answer:

fomenos3 years ago

8 0

Answer:

x=3/4 and y=1

Step-by-step explanation:

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3 years ago

HELP ASAP

oksano4ka [1.4K]

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Answer:

c. x = 7-t; y = -1/(t -7)

Step-by-step explanation:

To find the parametric equation for x, use the equation for t and solve for x.

t = 7-x

x = 7 -t . . . . . . add x-t to both sides

To find the parametric equation for y, substitute the equation for x.

y = 1/x

y = 1/(7-t)

To make this match the available choices, we need to multiply numerator and denominator by -1.

y = -1/(t -7)

The parametric equations are ...

x = 7 -t; y = -1/(t -7) . . . . . . matches choice C

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3 years ago

Read 2 more answers

1/4 ÷ 2/3 show,step please

kicyunya [14]

$\frac{1}{4}$ ÷ $\frac{2}{3}$ is the equation

When dividing fractions, you "flip-flop" and multiply

So what that means is that you flip the second fraction and multiply

So $\frac{2}{3}$ is now $\frac{3}{2}$

Now the equation is $\frac{1}{4}$ × $\frac{3}{2}$ which equals $\frac{3}{8}$

Your answer is $\frac{3}{8}$

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