Answer:
x = 2.5
Step-by-step explanation:
4( x + 7) = 38
step 1 distribute the 4 to the x and 7
4 * x = 4x
4 * 7 = 28
we now have 4x + 28 = 38
step 2 subtract 28 from each side
28 - 28 cancels out
38 - 28 = 10
we now have 4x = 10
step 3 divide each side by 4
4x / 4 = x
10 / 4 = 2.5
we're left with x = 2.5
According to a calculator it says 10.4235941176471 Have a good day! Brainliest Answer please ?
Answer:
first person to do what?
Step-by-step explanation:
To solve for r, you just need to isolate r. To do that, divide by h and π on both sides:

Then, square root both sides to get rid of the 'squared':

Or, if you wanted the answer in terms of π, then just don't divide by it, just divide by h and then square root it.
Answer:
C
Step-by-step explanation:
multiply through by 10
10{4.8(x-4)} = 10(-0.2x) + 10(15.8)
48(x-4) = -2x + 158
48x - 192 = -2x +158
48x + 2x = 158 + 192
50x = 350
divide through by 50
x=350/50
x=7
therefore, answer = C