Question

costumers rate service at jennaks bike shop from -10 to 10 with 10 being best and -10 being worst. last year bruce gave the shop a -7 this year he gave it a -2 which equation shows the change in bruces rating from last year to this year

Answer 1

To calculate the change in Bruce's rating of the bike shop, we subtract the old rating from the new rating, resulting in -2 - (-7) which simplifies to 5. Therefore, the change is an increase by 5 points.

Step-by-step explanation:

The question asks for the equation that shows the change in Bruce's rating of Jenna's Bike Shop from last year to this year. To find the change in rating, we simply subtract the old rating from the new rating. In this case, Bruce's rating went from -7 last year to -2 this year. Therefore, the equation representing this change is:

New Rating (this year) - Old Rating (last year) = Change in Rating

-2 - (-7) = Change in Rating

When we subtract a negative number, it is the same as adding the absolute value of that number, so the equation simplifies to:

-2 + 7 = Change in Rating

5 = Change in Rating

Thus, the change in Bruce's rating is an increase by 5 points.