3 years ago

Solve the system by substitution. y = 2x 3x + 2y = 21

1 answer:

8 0

Y=2x
3x+2y=21
3x+2(2x)=21
3x+4x=21
7x=21
x=3
y=2(3)
y=6

You might be interested in

Serjik [45]

The percent of people of smoke cigarettes is 20.9%..

4 0

3 years ago

Cloud [144]

Sharla, earned 2,000 more than Paul

6 0

3 years ago

stellarik [79]

Answer:

let x be the total money so,

3x+5x=32

x=32/8=4

so bridget got,

5×4=£ 20

hope it helps you

Step-by-step explanation:

3 0

3 years ago

kow [346]

Answer:

y = -2

Step-by-step explanation:

The midline is the horizontal line that passes exactly in the middle between the graph's maximum and minimum points.

From inspection, curve has a maximum at y = 1 and a minimum at y = -5

The midline between these is $y=\frac{1-5}{2}=-2$

So the equation for the midline of this graph is y = -2 (shown in red on the attached graph)

6 0

2 years ago

cupoosta [38]

The answer is 3275/12=272.916666667/7.5=<span>36.3888888889</span>

3 0

3 years ago