Question

Explain step by step

Amy's weight this year is 50 pounds less than twice her weight from last year. If she weighs 120 pounds this year,
write an equation for her weight last year and calculate her weight from last year.
Choose three or more different weights for amy, maintaining the same conditions, and graph the relationship
for a variety of cases.
based on your observation, does the graph make sense? Explain your finding

Answer 1

Answer:

let Amy's weight last year be X

and this year her weight is Y

thus Y=2X-50

Now, According to the question she weights 120 pounds this year i.e Y=120

120=2X-50

120+50=2X

170/2=X

X=85

thus, last year her weight was 85 pounds