3 years ago

How do you solve these equations using elimination

Mathematics

1 answer:

lara31 [8.8K]3 years ago

5 0

I think this is right
I hope this helps u

You might be interested in

What is the answer to -9(4x-10)+24

Fantom [35]

Answer:

-36x+114

Step-by-step explanation:

5 0

3 years ago

Jennifer has 25 coins with a total value of $4.25. The coins are quarters and nickels. How many of each does she have?

kirill115 [55]

Answer:

15 quarters, 10 nickels

Step-by-step explanation:

$q+n=25$

$0.25q+0.05n=4.25$

multiply the first equation by -0.25 and add the second equation to it

$-0.25q-0.25n=-6.25\\0.25q+0.05n=4.25$
________________
$-0.2n=-2$

$n=\frac{-2}{-0.2} =10$ has 10 nickels

$q=25-n=25-10=15$ has 15 quarters

10(.05) +15(0.25) = 0.5 + 3.75 = 4.25

Hope this helps

8 0

1 year ago

What is the simplified form of the following expression? 4/7^3

timofeeve [1]

If your question is :
$\frac{4}{7^3}$

Then the answer is:
$\frac{4}{7*7*7} = \frac{4}{343}$

If your question is:
$(\frac{4}{7}) ^{3}$

Then the answer is:
$\frac{4*4*4}{7*7*7} = \frac{64}{343}$

6 0

3 years ago

Read 2 more answers

What is the measure of angle A???

Dmitriy789 [7]

Answer:

41.5

180-14=166/4=41.5

5 0

3 years ago

A caterpillar moves across the grass at a rate of 4 feet every 7 minutes. How fast does the caterpillar move in feet per minute?

Alla [95]

Answer:

0.57 feet per minute.

Step-by-step explanation:

If the caterpillar moves 4 feet every 7 minutes, it can be written as a ratio: 4/7. When you divide 4 by 7, you'll find the feet per minute rate.

7 0

3 years ago