Question

Medal for best answers!

1. A dozen apples cost $2.55. At this rate, how much would 8 apples cost?

A. $20.40
B. $3.83
C. $0.21
D. $1.70

2. Solve the proportion. Where necessary, round to the nearest hundredth.
8/2 = x + 3/4

A. 13
B. 1
C. 7
D. 16

Answer 1

for 1, find the price of each individual apple
for 2 cross multiply

Answer 2

Ok, thanks

Answer 3

@bibby
1. is D, am I correct?

Answer 4

let's see. 12apples=2.55
divide both sides by 12 \(\huge \frac{1}{\cancel{12}}\cancel{12}x=2.55*\frac{1}{12}\)

0.2125 for each apple.
8 apples costs 0.2125*8 or 1.70

Answer 5

yeah, good job

Answer 6

1. $1.70

Answer 7

I guess you could technically do that in a proportion too.
\(\huge \frac{2.55}{12}=\frac{x}{8}\)
20.4=12x
x=1.7

Answer 8

i no