Answer:
A.) $0.89
Step-by-step explanation:
2(4x+3y=7.43)
-3(5x+2y=7.03)
8x+6y=14.86
-15x-6y=-21.09
add the two equations
-7x=-6.23
divide by -7
x=.89
24% of 80
24/100 = 0.24
0.24 * 80 = 19.2
answer should be 19.20
Problem 1 should be B, C, and D. I'm not sure about the rest... Sorry I couldn't be more of a help.
X + 4 units
4 x 4 = 16 units
112 - 16 units = 96 units divided by four (number of sides of garden) =
24. X = 24
However to check
24 + 4= 28
x 4
___
112 So X=24
If the store can only buy them in bulks of ten, then you take your number of desired cars (3,000) and divide it by the bulk amount (10) and it will give you your amount of bulk you need to buy to fulfill your desired amount of product (300). Simplified, you take your cars that they want, divide it by how many come in a set, and the answer will be how many sets they need to order. You need to use both the amount of desired cars and number of cars in a set as you primary information to solve this problem. Hope this helped!