4 years ago

How do I solve by using system of elimination?

1 answer:

6 0

You eliminate or ‘take away’ the answers that you know or think that r wrong. The last answer that’s left is your answer.

You might be interested in

I didn't get this.... "Simplify using like terms. 2x+4y+4x-2y"

kykrilka [37]

You add your x's 2+4= 6x and do the same with your y's 4-2= 2y you do with with ONLY X's with X's and Y's with Y's bc they are like terms

6x+2y should be your answer

4 0

3 years ago

Read 2 more answers

This Spring, Daisy wanted to

meriva

5•6 = 30.

She needs to buy 30 flowers from the store.

8 0

3 years ago

Read 2 more answers

I need help with these three problems step by step

vichka [17]

Answer:

Step-by-step explanation:

5 0

3 years ago

The amount of time a certain brand of light bulb lasts is normally distributed with a

scoundrel [369]

Answer:

92.65 % light bulbs last less than 2080 hours

Step-by-step explanation:

We are given that The amount of time a certain brand of light bulb lasts is normally distributed

Mean = $\mu = 2000$

Standard deviation = $\sigma = 55$

We are supposed to find What percentage light bulbs last less than 2080 hours, to the nearest tenth

$Z = \frac{x-\mu}{\sigma}\\\\Z=\frac{2080-2000}{55}$

Z=1.45

Refer the z table for p value

p value = 0.9265

Hence 92.65 % light bulbs last less than 2080 hours

5 0

3 years ago

.suma a doua numere este1246, iar diferența este 1234. Afla cele doua numere

Rzqust [24]

A+b= 1246
a-b=1234 => a= b+1234
2b+1234= 1246/-1234
2b= 12/:2
b= 6
a=b+1234
a= 6+ 1234
a= 1240

3 0

3 years ago