Question

Which proportion best represents the following? John bought apples at a rate of 0.5 lbs for $3.50. At this rate, how much would 2.8 lbs cost

Answer 1

can somebodys pls help

Answer 2

I would use a ratio:
0.5 lbs : $3.50

0.5:3.5
2.8:19.6 (multiply both sides by 5.6)

Therefore it would cost $19.6 for 2.8lbs

Answer 3

awnsers are
0.5/3.50=x/2,8
0.5/2.8=x/3.50
0.5/3.50=2.8/x

Answer 4

Your answers are formatted as :
pound : cost
Cost is your x, therfore your answer must be in the format:
pound/x

Answer 5

Those are just the two ratios expressed as an equation.

We have 0.5:3.5 and 2.8:x (because 19.6 is unknown until you do calculation)
In order to obtain the answer using algebra you can write the two ratios like this:

\[\frac{ 0.5 }{ 3.5 }=\frac{ 2.8 }{ x }\]

Answer 6

thank you riddellikins

Answer 7

You are very welcome