Solve the following system by the substitution method

2x+y=4

y+2x

If (x, y) is a solution to the system of equations, what is the value of y? X + 1 8 y = 20 x + 1 4 y = 4

In a first-aid kit the ratio of large bandages to small bandages is 3 to 2. Based on this ratio, how many large bandages are in the kit if there are a total of 80 bandages? a 40 b 48 c 16 d 32

Chin made an error in his chart showing the multiplication of the binomial by the trinomial. Which change can be made to correct the chart? The expression 3x3 should be 3x2. The expression 6x should be 6x2. The expression 4x should be 4x2.

A car is driving west on a highway at 25 m/s what is the cars speed in km/h

Amy invests $50,000 into an account eating 3% interest compounded monthly. How much will be accrued after 20 years?

1. 3 (5 - 2x) = - 2 (6 - 3x) - 10x 2. 1/4x - 2/5x = 39 3. 115 = 20 + 2.5x 4. 0.7x - 0.2 = 8.3x + 7.2 x = - 260 x = - 37/38 x = 38 x = 13.5

X^2-42^2 AND 58^2-48^2

Helen's house is located on a rectangular lot that is 1 1/8 miles by 9/10. Estimate the distance around the lot.

Wwhat is 5.1857 rounded to the nearest tenth

Latoya is making monthly payments of $58.00 to pay off a loan that she took out to buy a viola, but she wants to pay off her loan faster. Which of these monthly payments will allow her to do so?