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
So the equation format you will be using is y=mx+b. m = slope and b = y int.
So since to join the membership you have to pay $25.00 that will be your y int. Because that is the balance you are starting with. And then since the times you are paying each month are remaining constant, your slope will be $14. Finally x = months or time. So your equation will be y=14(6)+25 or y=14x+25
8)p-4= -9+p
+4 +4
p= -3 +p
p = 3p
p= 3
10) 12= -4(-6x-3)
12= (24x) - (-12)
+12 +12
24= 24x
x=1
12) -(7-4x)=9
-1 (7-4x)=9
(-7) - (-4x)=9
+7 +7
-4x=16
x =-4