A/b times b/c is = ab/bc
which can be written as a/c times b/b
anything over itself is 1 so b/b is one
a/b times b/c = a/c
9514 1404 393
Answer:
12 quarters
20 dimes
Step-by-step explanation:
If all were dimes the value would be $3.20. It is $1.80 more than that. Each replacement of a dime with a quarter adds $0.15 to the value, so there must be $1.80/$0.15 = 12 such replacements.
There are 12 quarters and 20 dimes.
_____
Let q represent the number of quarters.
0.25q +0.10(32 -q) = 5.00 . . . . . total value
0.15q +3.20 = 5.00 . . . . . . . . . simplify
q = (5.00 -3.20)/0.15 . . . . . . subtract 3.20 and divide by 0.15
q = 12
<span>V=84.82. V= Pi*R^2(h/3). plug your answers into this formula and follow the rules of pemdas.</span>
Answer:
Y = 1/4x + 1/2
Step-by-step explanation:
The inverse is found by reflecting the graph across the y=x line. In the equation, this result by switching x and y then solving for y.
Y =4x-2
X=4y-2
X+2=4y
(X+2)/4= y
1/4x +1/2 =y
