Question: Quing deposits $40 at the end of each month into a savings account. If the money earns 4% annum compounded monthly, how much money is in the account at the end of 24 months?
and
Calculate the present value of an annuity, if $150 payments are to be made monthly for 4 years and the interest rate is 9% per annum compounded monthly.
From Sandra: I am putting in a sidewalk the measurements are 12 feet by22 inches ,by 4inchs how many bags of cement will I need? Answered by Penny Nom.
From Geocee: Three people go to a store where there is a sale. One person buys two shirts, one pair of pants and one sweater. The second person buys one shirt, two pairs of pants and two sweaters. The third person buys three shirts and four pairs of pants. Find the price of each item if the first person spent $155 and the second and third person spent $235 each. Answered by Stephen La Rocque.
From Mike: Our school is looking to order a large amount of math manipulatives. Do you have a reliable, reasonably priced source that is not producing 'kits' that are intended for specific math programs like Math Makes Sense? Answered by Diane Hanson and Walter Whiteley.
From Larry: need to find area of a circle between a given line (cord) to the circumference of the circle (see attachment). I often review blue prints of homes and many times have to know the area the home. Answered by Stephen La Rocque and Penny Nom.
From Teenarick: A boat travels 60 miles upstream against the current in 3 hours. It takes 2 hours for the return trip. Find the speed of the boat in still water. Answered by Penny Nom.
From Phil: Hi, I am an art student and I am trying to make a "truncated cone" (ie: a cone with the top cut off) out of sheet metal. I need to design a template first and am having problems working out the angles. The truncated cone is 250mm high, 550mm wide at the bottom and 290mm wide at the top. Can you help? Answered by Stephen La Rocque.