Answer:
$6.75
Step-by-step explanation:
The regular price is $15 dollars. The discount is 55% off the $15.
15 * 0.55 = 8.25
15 - 8.25 = 6.75
Hope this helps.
Answer:
Step-by-step explanation:
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Answer:
Isolate the variables in all cases. Note the equal sign, what you do to one side, you do to the other.
a) 3x = 18
Isolate the variable, x. Divide 3 from both sides:
(3x)/3 = (18)/3
x = 18/3
x = 6
b) 2x = 9
Isolate the variable, x. Divide 2 from both sides:
(2x)/2 = (9)/2
x = 9/2
x = 4.5
c) (x/5) = 7
Isolate the variable, x. Multiply 5 to both sides:
(x/5)(5) = (7)(5)
x = 7 * 5
x = 35
d) x/2 = 6.5
Isolate the variable, x. Multiply 2 to both sides:
(x/2)(2) = (6.5)(2)
x = 6.5 * 2
x = 13
~
You must get x by itself on one side of the equal sign therefore start by subtracting 20 from both sides of the equation the divide .5 from both sides of the equation.
20 + .5x - 20 = 37 -20
.5x = 17
.5x/.5 = 17/.5
x = 34
Answer:
$18.00
Step-by-step explanation:
Because you know that 15 baseball cards costs 9.00. 30 is 2 15s added together. So you will do 9.00+9.00 in order to get the amount of money it needs. Double the baseball cards cost double the money.
Hope this helps. Please give brainliest.