2 years ago

What is the answer to: y=-2x-5,4x+3y=15 using substitution to solve it..??

Mathematics

1 answer:

MrRa [10]2 years ago

4 0

Answer:

Step-by-step explanation:

Plug the first equation into the second

$4x+3(-2x-5)=15\\4x-6x-15=15\\-2x=30\\x=-15$

y=-2(-15)-5

=30-5

=25

You might be interested in

100,000+4,000+800+5 in standard form.

Vedmedyk [2.9K]

Answer:

104,805 i think

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

7. If a 12 pack of soda cost Mr. Key $3.84, what would the unit price be for

AlekseyPX

Answer:

32 cents

Step-by-step explanation:

3.84 ÷ 12 = 0.32 so 32 cents

7 0

3 years ago

Maya goes bowling with her friends. She has a total of $25 to spend. If shoes cost $4 to

IRINA_888 [86]

Answer:

She can play 7 games

Step-by-step explanation:

Substrate 4 from 25

7 0

2 years ago

Isabella has dance class every 3 days and soccer

Nataliya [291]

Answer:

Step-by-step explanation:

first you need to find the LCM (least common multiple) which is 15 so then every 15 days she will have both soccer, dance class and swimming class on the same day

4 0

3 years ago

Help me plz u will make my day

iris [78.8K]

Answer:

K=13

Step-by-step explanation:

So first, we subtract 13 with 3/4 (That comes from 4 3/4) and we get 12 1/4.

And then, we subtract 12 1/4 with 4, and we get 8 1/4

Have I made your day?

4 0

2 years ago