3 years ago

SYSTEM OF EQUATION WITH SUBSTITUTION

Mathematics

1 answer:

VMariaS [17]3 years ago

4 0

Answer: x=6, y=4

Step-by-step explanation:

substitute y with (x-2) in the 1st equation

10x-9(x-2)=24

10x-9x+18=24

x+18=24

x=6

Then use 6 for x to solve for y

y=6-2

y=4

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Step-by-step explanation:

The 95% confidence interval for population proportion p can be computed as

$p-z_{\frac{\alpha }{2} } \sqrt{\frac{pq}{n} }$

The z-value associated with 95% confidence level is 1.96.

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How to solve -18=6y+6(1+3y)

slamgirl [31]

Answer:-1

Step-by-step explanation:

I rewrote it so it looks like this:

6y+6(1+3y)=-18

6y+6(1)+6(3y)=-18

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