Asked by Andrea

Samantha opened a savings account and deposited some money into the account. The account pays an annual simple interest rate of 5%. After 9 years, the interest earned on the account was $1,800. How much money did Samantha deposit in the account?
Answered by Ms. Sue
I = PRT

1800 = P * 0.05 * 9

1800 = 0.45P

1800/0.45 = P

4,000 = P


Answered by Andrea P.
John is creating a Thanksgiving display at the store where he works, using only canned pumpkin and canned green beans. He needs to maintain a ratio of pumpkin to green beans of 5 to 2. If he wants to use a total of 112 cans, how many cans of green beans should he use?
Answered by Ms. Sue
2/7 = x/112

Cross multiply and solve for x.

Answered by Andrea P.
A small airplane flies from Big Lake to Pine City every day, with a 30-minute layover in Summerville. The distance between Big Lake and Summerville is 675 miles, and the distance between Summerville and Pine City is 625 miles. If the airplane flies at an average speed of 200 mph, how long does the whole trip (including any stops) from Big Lake to Pine City take?
Answered by Ms. Sue
675 + 625 = 1300 miles

1300 / 200 = 6.5 hours

6.5 + 0.5 = ?

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