Question

A construction worker bought several bottles of juice for $3 at the comedian store she paid for them the $20 bills if J represents a number of bottles of juice write an expression for the change she would receive

Answer 1

Expression 20 – 3J represents the change in dollars, which construction worker will receive after buying J bottles of juice.

Solution:

Given that  

A construction worker bought several bottles of juice for $3 at the comedian store

She paid for them the $20 bills

Number of bottles of juice is represented by variable J

Need to write an expression for the change she receives.  

From given information

Price of 1 juice bottle = $3

$\text { So price of J juice bottles }=\mathrm{J} \times \text { Price of } 1 \text { juice bottle }$

$=\mathrm{J} \times 3=3 \mathrm{J}$

Change she receives = Amount she paid - price of J juice bottles  

=> Change she receives = 20 – 3J

Hence expression 20 – 3J represents the change in dollars, which construction worker will receive after buying J bottles of juice.