Lời Giải
the sum of eight times a number and fifteen is seven.
Lời Giải
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Represent the number with
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Two airplanes leave Chicago's Midway airport at the same time, traveling in opposite directions. One travels 25 miles per hour faster than the other. After 2 hours, they are 490 miles apart. find the speed of the faster airplane.Question 7 How much should I invest now into an account paying 4% p.a. compounded interest if I want the investment to have a value of K20 000 in 2 years, time? (2marks)Half of a number,two increased by the product of a number and 8 is less than 19Harold deposited 70 in an account earning 5% interest compounded annually.To the nearest cent, how much interest will he earn in 2 years?