X = 2
y = 1

You can get this by replacing the y in the second equation with the 3x - 5 from the first. Then solve for x. Once you have that value, you can solve for y.

7 0

2 years ago

R+6> 13 solving one step inequalities

Sidana [21]

Answer:

R > 7

Step-by-step explanation:

R+6> 13 (subtract 6 from both sides)

R > 13 - 6

R > 7

6 0

3 years ago

Building A is 883 feet tall and contains 70 stories. Building B contains 104 stories. If the two buildings have the same number

Snowcat [4.5K]

Answer:

1311.88

Step-by-step explanation:

Feet:stories

883:70

x:104

To solve this we need to multiply 883 by 1.48 because this is what we multiplied 70 to get to 104

x=1311.88=1312

7 0

2 years ago

Use the change of variables s=x+3y, t=y to find the area of the ellipse x2+6xy+10y2≤1.

MArishka [77]

$t=y\implies s=x+3t\implies x=s-3t$

Then

$x^2+6xy+10y^2=(s-3t)^2+6(s-3t)t+10t^2=s^2+t^2\le1$

which is a disk of radius 1, hence with area $\pi$ .

5 0

3 years ago