Answer:
9 - 5x = 7
Step-by-step explanation:
Nine (9) less (-) then the product (*) of 5*x, equals (=) to 7
9 - 5x = 7
Answer:
f(9/2) = 17/2
Step-by-step explanation:
f(x) = 3x-5
let x=9/2
f(9/2) = 3*9/2 -5
f(9/2) = 27/2 - 5
get a common denominator
f(9/2) = 27/2 - 10/2
f(9/2) = 17/2
I am assuming that the cost of an oil change already includes the mark-up.
So, 18 is 175%. 18 ÷ 1.75 = 10.29 is the original cost.
10.29 * 3/4 = 30.87/4 = 7.71 mark-up
10.29 + 7.71 = 18
Or if 18 is the basis of the mark-up, then,
18 * 3/4 = 54/4 = 13.50 mark-up
18 + 13.50 = 31.50 new cost of an oil change
Answer:
90 ft
Step-by-step explanation:
first you find the area of the 10 by 3 triangle, since on the other side it,s the same, all we need to do is find one of each triangle then mulitply it by 2 to get the area. then find the area of the 20 by 3 triangle. once you do that you will get 45, then you multiply it by 2 because it is the exact same on the other sides. then when you do that you get 90 ft. I hope this helps you! peace out.
Answer:
134217728
Step-by-step explanation:
The geometric sequence formula is:
We know that 
and 
, we also want to find the 25th term, substitute n = 25:
Therefore, the 25th term of sequence is 134217728
