Mathematics, 16.08.2020 01:01 PlaneGamer5678

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

Answers: 3

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Answers

Answer from: alainacorkell2087

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

M = 60 - P

Substitute this in the first equation

5P + 3M = 225 becomes

5P + 3(60 - P) = 225

Open the bracket

5P + 180 - 3P = 225

Collect Like Terms

5P - 3P = 225 - 180

2P = 45

Divide both sides by 2

P = 22.5

Substitute 22.5 for P in M = 60 - P

M = 60 - 22.5

M = 37.5

Calculate the difference; M - P

M - P = 37.5 - 22.5

M - P = 15

Hence, there are 15 more measles vaccines than polio vaccines

Answer from: Quest

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.

Answer from: Quest

"it's not the heat, it's the humidity". that's a partly valid phrase you may have heard in the summer, but it's actually both. the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature. this has important considerations for the human body's comfort. when the body gets too hot, it begins to perspire or sweat to cool itself off. if the perspiration is not able to evaporate, the body cannot regulate its temperature. evaporation is a cooling process. when perspiration is evaporated off the body, it effectively reduces the body's temperature. when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases. in other words, the human body feels warmer in humid conditions. the opposite is true when the relative humidity decreases because the rate of perspiration increases. the body actually feels cooler in arid conditions. there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

step-by-step explanation:

75% of the temperatures are below what value? how do you know? 75% of the temperatures are above w

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