2 years ago

Substitution would be the best method for solving which system?

Mathematics

2 answers:

natali 33 [55]2 years ago

8 0

Answer:

Assuming its asking which is the easiest one to use substitution its the last one: y= 2x : x + y = 28

Step-by-step explanation:

Because y and x are already one opposite sides you can substitute y in the 2nd equation with 2x. So you'll get 3x = 28 so x = 9.333333334. Then you plug your answer for x in the original equation to get y = 18.666666667

Pepsi [2]2 years ago

5 0

Answer:

The last one

Step-by-step explanation:

Because it tells you what y is

You might be interested in

PLZ HELP QUICK PLZ

olya-2409 [2.1K]

Answer:

hope this helps you

5 0

3 years ago

Jerry’s loan had a principal of $22,000. He made quarterly payments of $640 for nine years until the loan was paid in full. How

Leto [7]

Answer: $1040

A = P + I

A = Total

P = Principal

I = Interest

First find the total amount

A = 640(4)(9)

A = 23040

Plug In the Numbers

23040 = 22000 + I

Substract 22000 on both sides

I = $1040

8 0

3 years ago

Joseph has a collection of Pokemon cards. He has 3 times as many Character cards as he has Energy cards. He has a total of 312 c

-BARSIC- [3]

Answer:

e = 312/4

Step-by-step explanation:

6 0

3 years ago

600 miles in 8 hours _?_ miles per hour (number answer only) Question

kow [346]

Answer:

Step-by-step explanation:

you have 600 = 8 and you want to break it down into just 1 hour so you divide both sides by 8

600/8 = 75

4 0

3 years ago

8 15 27 blank 20 find the blank number

777dan777 [17]

Answer:

the blank number is 23

Step-by-step explanation:

8, 15, 27, x, 20

common ratio, r= T2÷ T1= T3÷ T2

= 15 ÷ 8 =27÷ 15

= 1.8 = 1.8

20 ÷ x = x ÷ 27

( cross multiply,)

x²= 540

x =√540

x = 23.24

x = 23

6 0

4 years ago