Answer:
He can buy 4 model cars
Step-by-step explanation:
∵ His total money = the cost of books + the cost of model cars
∵ He buys 6 books and the price of each book is $2
∵ The cost of each model car is $7 , let the number of model cars is c
∵ He has $40
∴ 6 × 2 + 7 × c = 40
∴12 + 7c = 40
∴ 7c = 40 - 12 = 28
∴ c = 28/7 = 4
∴ He can buy 4 model cars
Answer:
1 43/100
Step-by-step explanation:
10 boys divide 7 cereal bars equally or
10 / 7 = 1.428571428571429
Or 1.43 rounded Or 1 43/100
The volume of any rectangular prism is:
V=xyz, where x, y, and z are the dimensions of the prism.
In this case we are given the volume and two dimensions.
22(40)x=2500 (answer D.)
"on sale for 12% off" means that whatever the price is (y) we multiply it by 0.88 since 1-0.12 = 0.88
Price before discount = original price = y
Price after discount = 0.88y
Put another way, we took 88% of the original price to get the discount price.
------------------------------------
Now tack on the sales tax. We do this by multiplying the discount price by 1.03 (1 + 0.03 = 1.03)
So we have:
final cost = 1.03*(discount price)
final cost = 1.03*(0.88y)
final cost = 0.9064y
telling us that the final cost is 90.64% of the original price (y). With the tax added, the discount is not 12% but actually 100% - 90.64% = 9.36%
Answer:
x = 2
Step-by-step explanation:
3x + 7 = 2x .... subtract 2x each side
x + 7 = 0
x = -7
this is a line parallel to y axis
therefore a line parallel to it and pass point (2,6) is x = 2
