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A balloon (in the shape of a sphere) is being inflated. The radius is increasing at a rate of 1 cm per second. Find a function, r(t), for the radius in terms of t. Find a function, V(r), for the...

How does the time taken for a walk depend on how far you go?

4 fair coins are simultaneously flipped and 1 fair 4-sided die (with numbers 1-4 on the faces) is tossed. What is the probability that the number of heads is equal to the number that comes up on the...

Hal says that the greatest product of a 3-digit number and a 1-digit number is 8,891. Is he correct? Explain

There are 4 semi-trailer trucks parked in a line at the rest stop. After the first truck, each truck in the line weighs 2 tons more than the truck before it. The trucks weigh a total of 32 tons. How...

The names must be ordered in order.

At a park a picnic shelter covers 1/4 of an acre and a playground covers 5/8 of an acre how much area is covered by both the picnic shelter and the playground?

Adam and Matt tied for third place in a math contest. Their teacher told them that the first one to tell him the number he was thinking of would become the third place winner and the other one would...

A rectangle bedroom floor has an area of 100 square feet and a leght of 10 feet.what is the perimeter

Carpet masters charges $9.50 per square yard to clean carpet if you have two rooms with an area of six square yards each how much will it cost to have the carpets cleaned

i need to find out how much does Jane make.

JB bought 5 pounds of nuts for a party, including salted almonds and pecans. He paid a total price of $61.95, with the price of almonds at $17.99/lb. and the price of pecans at $9.99/lb. How...

Katie met her friend Sarah for lunch over the weekend.The bus,ride downtown cost $2.She spent half of the money she started the day with on lunch.Then she ran into her friend Dave who paid her...

I am need to know the worth of the ring

Maggie is planning to build a new one-story house with floor area of 3500 squared ft. She is thinking about putting in a 10 ft ceiling instead of an 9 ft ceiling. If she does this, how many more cubic...

______ units of the $250 model _________ units of the $300 model What is the optimal profit? $______

Math practices and problem solving.

A wall and I have to find the area. How do I do it?

A new factory is scheduled to be built near your community. Local building codes demand that factory buildings must be surrounded by a 'green lawn' area of uniform width. The 'green lawn' area must...

Mark D.

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