airplane rate of change problem
Flying against the wind, an airplane travels 4200 km in 7 hours. Flying with the wind, the same plane travels 4000 km in 4 hours. What is the rate of the plane in still air and what is the rate of...
Flying against the wind, an airplane travels 4200 km in 7 hours. Flying with the wind, the same plane travels 4000 km in 4 hours. What is the rate of the plane in still air and what is the rate of...
The cost of tuition at a certain college varies directly as the number of credit hours taken. For the academic year 2005-2006, the cost of 18 credit hours was $1638. What did 16 credit hours cost...
Suppose that you received an unexpected inheritance of $19,250. You have decided to invest the money by placing some of the money in stocks and some in bonds. To diversify, you decided that 3 times...
The perimeter of a rectangular floor is 120 feet. Find the dimensions of the floor if the length is twice the width
An isosceles triangle is one in which two of the sides are the same length. The perimeter of an isosceles triangle is 63 cm. If the length of the congruent is 4 times the length of the third side,...
Alicia wants to build a block pyramid similar to the one shown. block pyramid the top level will always have 2 blocks. Alicia wants her pyramid to contain as many levels as possible. How many levels...
hailey earned $75 in simple interest for depositing $500 in a savings account and leaving it there for 5 years. What was the simple interest rate for he savings account?
A company sold garden hoses at a reduced price of $6.61 and took an end-of-season markdown of $11.38. What was the original selling price of each hose? Use the formula M=S-N, where M is the markdown,...
A company sold bird feeders for $71.77 and had marked them up $36.82. What was the cost of the feeders? Use the formula S= C+M.
The annual real estate tax on a duplex house is $20,985 and the owner sells the house after 6 months of the tax year. How much of the annual tax will the seller pay? How much will the buyer pay?...
Last week at a festival a man sold 4 times as many tie-dyed Tshirts as silk screened shirts. He sold 195 shirts altogether. How many tie-dyed shirts did he sell?
Two mothers and two daughters went shopping yesterday. As they went home they added things up and discovered that the total amount spent was $90 and that each of them had spent exactly 1/3 of the...
in 2003, the population of a certain country per sq mile of land area was 87. In 2000, the person per sq mile population was 84.3. Assume the relationship between years and persons per sq mile is...
i want to know how many hours and mins the remaining 29 percent disk space would be if i only use normal video( thats what the 71 percent is . so dont count HD video
whenMichael was cleaning out his garage, he found two pieces of rope such once piece was 5 feet less than 3 times the other piece. Together they measured 51 feet. What is the length of each piece...
Samuel decided to paint the house. he bought 2 cans of paint and one roller for $30. more help arrived so he went back and got 3 more cans of paint and 2 more rollers for $50. how much did he have...
Ali's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Ali per pound, and type B coffee costs per pound. This month, Ali made pounds of the blend, for a total...
Kristy brought a package of mini muffins for $3.Each package contains 12 mini muffins. If Kristy has 60 mini muffins,how much money did she spend?
A truck attached to a tree by a rubber strip begins driving away from the tree at 10 mph. At the same time, a bug steps off the tree onto the rubber strip and begins walking along the strip towards...
the teenagers in a youth group are going to share the cost of some pizzas. The original cost was $6 per person, but 5 teenagers couldn't stay to eat. so the cost went up to $8 per person...