Question 314289
parts in april were 1,100 with an increase of 10% over march.
services in april were 70,000 with an increase of 25% over march.


In general, the formula to use is:


let m = revenue in march.
let a = revenue in april.


a * (1+i) = m


where i is the increase percentage divided by 100%.


If we divide both sides of this equation by (1+i), then we get:


m = a / (1+i)


This says that the march revenue is equal to the april revenue divided by 1 + the increase percent divided by 100%.


Since parts increase was 10%, then (1+i) would equal 1.10 for parts.


since services increase was 25%, then (1+i) would equal 1.25 for services.


For parts, this equation becomes:


m = 1100 / (1.10)


For services, this equation becomes:


m = 70000 / (1.25)


Resolving these formulas, we get:


parts in march = 1100/1.10 = 1000
services in march = 70000/1.25 = 56000


The total revenue in march is equal to $57,000


To confirm, we just go in reverse.


april parts = march parts + 10% which equals 1000 + 100 which equals 1100.
april services = march services + 25% which equals 56000 + 14000 which equals 70000.


The answer is confirmed to be accurate so we're good.