kyliemo2003 kyliemo2003

01-02-2017
Mathematics

contestada

Solve the system of equations.
2x-y=5
3x+2y=4

A.) (3,1)
B.) (0,2)
C.) (2,-1)
D.) (9/7,17/7)

Respuesta :

Jedimaster13 Jedimaster13

01-02-2017

2x - y = 5 also equals 4x - 2y = 10

4x-2y=10
+3x+2y=4
7x = 14
x = 2

2(2) - y = 5
-y = 1
y = -1

so, B. (2,-1)

Answer Link

Otras preguntas

In aerobic cellular respiration, glucose is broken down in a series of reactions to produce carbon dioxide and water These reactions provide the energy necess

Suppose that $2000 is invested at a rate of 2.1% compounded annually. Assuming that no withdrawals are made find the total amount after 5 years. Do not round an

Simplify 2(x-3)÷4=5-8+5

The force exerted by the weight of the air above is called what?

Ezra is training for a track race. He starts by sprinting 100 yards. He gradually increases his distance, adding 5 yards a day for 21 days.

How many friends can Jose invite if he wants to spend only $50.00 total on skate rentals?

What “sphere” is the largest reservoir of nitrogen?

Nondangerous body fluids include all of the following except: A. saliva B. sweat C. blood D. vomit

A pet store had 4 cats to feed. If they only had one fifth of a bag of cat food and each cat got the same amount, what fraction of the bag would each cat get?

How is the economy of Northern Europe different from that of the United States?