3. Dr. Potter provides vaccinations against polio and measles. Each polio vaccination consists of 5 doses, and each measles vaccination consists of 3 doses. Last year, Dr. Potter gave a total of 60
vaccinations that consisted of a total of 225 doses. How many more measles vaccines did Mr.
Potter give than polio?

Please explain the process. THX

There are 15 more measles vaccines than polio vaccines

Step-by-step explanation:

Represent Polio with P and Measles with M

Given

5P + 3M = 225

P + M = 60

Required

How much is M greater than P; M - P

Make M the subject of formula in the second equation

Substitute this in the first equation

becomes

Open the bracket

Collect Like Terms

Divide both sides by 2

Substitute 22.5 for P in

Calculate the difference; M - P

Hence, there are 15 more measles vaccines than polio vaccines

both graphs increase on their domain

neither graph has a y-intercept

step-by-step explanation:

the following points can be visualized easily from the graph

i have no idea just need points sorry

step-by-step explanation: