4 years ago

What is the solution set for 3x+2y=8 2x-2y=2

Mathematics

1 answer:

Aleksandr [31]4 years ago

7 0

Add the two equations: 5x=10, x=2, but x-y=1 so y=1. The solution set is uniquely (2,1).

You might be interested in

Please help me with this.... 4x+3=23

MArishka [77]

Answer:

x=5

Step-by-step explanation:

23-3= 4x or 20

that means 4x is equal to 20

20 divided by 4 is 5

so x is equal to 5

6 0

3 years ago

Can someone help me out

Svetradugi [14.3K]

The answer is g4 -2 hope this helps

6 0

4 years ago

Read 2 more answers

Simplify this product<br> (v+6)(v-6)

Phoenix [80]

V(squared) - 36

multiply v times v, v times -6, 6 times v, 6 times -6 and add them all together

5 0

3 years ago

What is 7/21 simplified

Mumz [18]

This would be 1/3.
(7 goes into 21, 3 times)

6 0

4 years ago

Read 2 more answers

Oregon State University is interested in determining the average amount of paper, in sheets, that is recycled each month. In pre

Juliette [100K]

Answer:

The test statistic is $t = 2.79$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 59.3$

The sample size is $n = 79$

The sample mean is $\= x = 62.4$

The standard deviation is $\sigma = 9.86$

Generally the test statistics is mathematically represented as

$t = \frac{\= x - \mu }{ \frac{ \sigma}{ \sqrt{n} } }$

substituting values

$t = \frac{ 62.2 - 59.3 }{ \frac{ 9.86}{ \sqrt{ 79} } }$

$t = 2.79$

4 0

4 years ago