Answer:
im gonna assume the 10 - 20 is what the equation is = to if not x wouldnt be = to anything x = -1.5
Step-by-step explanation:
-2.25x + 8.75x = 10-20
-2.25x+ 8.75x = -10
6.50x = -10 divide both sides by 6.5
x = -1.5
Percent of change = (new value - old value)/(old value) * 100
percent of change = (6400 - 8700)/(8700) * 100
Answer:
Lisa makes $262.50 of profit if she sells 50 watch bands
Step-by-step explanation:
First we need to find out how much 1 watch band is.
To find that we can do $105 / 20, which is $5.25 dollars
Since she sells all 50 watchbands we can multiply $5.25 dollars by 50.
Therefore 50 * $5.25 is $262.50.
please consider giving brainliest if this helps!
Answer:
a 1024
Step-by-step explanation:
To find the base area it is pi r^2, so work backwards 64pi = pir^2. Divide both sides by pi to cancel and you have 64=r^2, square root both sides and you get r=8. Using the radius to find the height you then multiply 8 by 2 so the height is 16. The formula to find Volume of a Cylinder is V= Bh, B=64 h=16.
So it equals 1024
The second one. Hope this helps! (You should give the credit to the other person who answered because they helped me out with this.)