Question

Marta’s checkbook shows that she wrote a check for $987 for building materials. What was the price of the materials if the sales tax is 5%? @Pre-Algebra

Answer 1

show ur work plz

Answer 2

987 + 5/100 * 987

Answer 3

$ 940

Answer 4

what huh???

Answer 5

x + (5/100)x = 987
(21x)/20 = 987
x = 19740/21
x = 940 $

Answer 6

i dnt get it???

Answer 7

Marta bought those material's for $987. That is cost of those building material + sales tax(5%)
Let cost of building material's be x. Then
x + 5% of x = 987
x + (5/100) x =987
x + (x/20) = 987
(21x)/20 = 987
21x = 987*20
= 19740
x = 19740/21
x = 940
Cost of building material = $ 940

Answer 8

You can check it.
940 + (5/100)*940 = 987

Answer 9

if he is paying $987 dollars for building material then you would change your precent to a decimal that becomes .05 then you multiply it together 987x.05 which equals 49.35 thats your sales tax then you add that on too 987 ,, 987+49.35 which equals 1036.35.