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About Scott A Wilson
Expertise
I can answer any question in algebra, pre-calculus, probability, trigonometry, or statistics.
Experience
Experience in the area; I have tutored people over the years in algebra, basic math, and statistics.
I worked at The Boeing Company for over 5 years.
Education/Credentials: MS degreee in Mathematics from Oregon State Univeristy; taken well over 100 hours of upper division credits in mathematical courses such as calculus, statistics, probabilty, linear algrebra, powers, linear regression, matrices, and more.
I graduated with honors.
Past/Present Clients: College Students at OSU, various math people since college, over 700 people in math and calculus.
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You are here: Experts > Science > Mathematics > Advanced Math > maths ratios
Expert: Scott A Wilson
Date: 5/18/2008
Subject: maths ratios
Question
A school had an enrollment of 1150 pupils. The ratio of boys to girls was 23:27.
a. How many boys were enrolled?
b. How many girls were enrolled?
Could you please show how to do the working out. Thankyou
answer a.529 boys
b. 621 girls
And
A population of a town is 68850.Of these, 30600 are female.
a.what is the ratio of males to females?
b.If 2000 males come to live in the town, how many extra females are needed to maintain the same ratio?
Could you please show me how to do the working out on this one as well.Thankyou
answer a.5:4
b.1600
Kieren
Answer
Problem 1
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Add the 23 and 27 together, divide 1150 by the result, and multiply 23 and 29 by this number.
Problem 2
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a. Subtract 30600 from 68850 to get the boys. The ratio of the number of males to the number of females is the answer. The ratio you have .
b. Divide the number of girls by the number of boys, then multiply by 2000 to get the answer.
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