unit 7.6, practice day 1: task cards task 3: solar power felipes family has solar panels on the roof of…

unit 7.6, practice day 1: task cards task 3: solar power felipes family has solar panels on the roof of their house. they get a credit each month for the electricity generated by the solar panels. the bill each month is equal to the charge for electricity used plus the credit for electricity generated. 1. the table shows the charges and credits for several different months. what was the bill in july? 2. the bill in november was $5 less than the bill in august. what was the charge in november? 3. during which month did felipes family have the highest bill? month charge ($) credit ($) july 45.32 -53.80 august 82.92 -35.76 september 72.48 -30.80 october 76.20 -21.44 november -19.22

unit 7.6, practice day 1: task cards task 3: solar power felipes family has solar panels on the roof of their house. they get a credit each month for the electricity generated by the solar panels. the bill each month is equal to the charge for electricity used plus the credit for electricity generated. 1. the table shows the charges and credits for several different months. what was the bill in july? 2. the bill in november was $5 less than the bill in august. what was the charge in november? 3. during which month did felipes family have the highest bill? month charge ($) credit ($) july 45.32 -53.80 august 82.92 -35.76 september 72.48 -30.80 october 76.20 -21.44 november -19.22

Answer

Explanation:

Step1: Calculate July bill

The bill is the charge plus the credit. For July, the charge is $45.32$ and the credit is $- 53.80$. So the bill is $45.32+( - 53.80)=45.32 - 53.80=-8.48$.

Step2: Calculate August bill

For August, the charge is $82.92$ and the credit is $-35.76$. The bill is $82.92+( - 35.76)=82.92 - 35.76 = 47.16$.

Step3: Calculate November bill

The bill in November was $5$ less than the bill in August. So the bill in November is $47.16−5 = 42.16$. Let the charge in November be $x$ and the credit is $-19.22$. Then $x+( - 19.22)=42.16$, so $x=42.16 + 19.22=61.38$.

Step4: Calculate bills for other months

For September, bill is $72.48+( - 30.80)=72.48 - 30.80 = 41.68$. For October, bill is $76.20+( - 21.44)=76.20 - 21.44 = 54.76$.

Step5: Compare bills

We have July bill: $-8.48$, August bill: $47.16$, September bill: $41.68$, October bill: $54.76$, November bill: $42.16$. The highest bill is in October.

Answer:

  1. $-8.48$
  2. $61.38$
  3. October