Answer: Calvin has 13 quarters.
Step-by-step explanation:
Let Calvin have x quarters.
therefore amount of Calvin = 0.25 x [ 1 quarter = $0.25 ]
Number of dimes for Sara = x
[ Given that number of dimes of Sara = number of quarters of Calvin
Amount of dimes for Sasha = 0.1x [ 1 dime = $0.1 ]
Amount of Sasha without dime = $1.95 [ given]
total amount of Sasha = 1.95 =+ 0.1x
Since amount of Calvin and Sasha is same therefore
0.25x = 1.95 +0.1x
0.25x -0.1x = 1.95
0.15x = 1.95
x = 
x = 13
Answer:

Step-by-step explanation:

































Thanks!!!!!!!
Answer:
x^2
here's your solution
=>. when any number. get multiplied with
same number then it bwcome square
=>. so, same thing will happen to X also
=>. ( x * x ). =. x^2
Answer:
1/36
Step-by-step explanation:
(1/6 * 1/6) = 1/36
Answer:
y = ± sqrt(x+7)
Step-by-step explanation:
y = x^2 -7 solve for 'x' .... add 7 to both sides
y+7 = x^2 sqrt both sides
+- sqrt(y+7) = x switch 'x' and 'y'
y = +- sqrt(x+7)