If x*6 and y*7-1 equal 48, what numbers are x and y?

x = 8

y = 7

Step-by-step explanation:

x • 6 = 48

In order to isolate the variable, you need to do the opposite operation which is division in this case.

Divide 6 by 6 to cancel it out. Whatever you do to one side has to be done to the other side. Now we're left with 48 ÷ 6

We can check this by plugging your answer in the equation

8 • 6 = 48

This statement is true

y • 7 - 1 = 48

Start with doing the inverse operation, which is addition. Add 1 to -1 to cancel it out and do the same to the other side

y • 7 = 49

Then, divide 7 by 7 and do the same to the other side

y = 7

Check to make sure you're right

7 • 7 - 1 = 48

49 - 1 = 48

48 = 48

This statement is true

I hope this helps. (:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.