Posted by **tammy** on Saturday, January 6, 2007 at 1:56pm.

1.find the area heigh 5ft width 8 ft

A=H x W

A= 5ft x 8Ft

A= 40ft^2

2.The circular surface of a table has a diameter of 4 ft. What it will cost to have the top refinished if the company charges $5.00 per square foot for the refinishing ? Use 3.14 for pi and round your answer to the nearest cent.

(3.14)x(4/2)^2

(3.14)(2)^2

(6.28)^2=39.4384

39.4384 x $5.00

$197.19

3. Divid by moving the decimal point 27.3/10^5=

.000273

4. A beef roast weighing 6.6lb costs $2.25 per pound. What is the cost of the roast?

$2.25

x 6.6

$14.85

5. Write 0.00548 as a common fraction or mixed number.

548/100,000 = 137/25,000

2.The circular surface of a table has a diameter of 4 ft. What it will cost to have the top refinished if the company charges $5.00 per square foot for the refinishing ? Use 3.14 for pi and round your answer to the nearest cent.

(3.14)x(4/2)^2

(3.14)(2)^2

**ok to here. For the next step you squared 3.14 x 2 but you should have squared just the 2.
**

3.14(2)^{2} = 3.14(4)=12.566 ft^{2}. Then multiply by $5.00.
(6.28)^2=39.4384

39.4384 x $5.00

$197.19

Two notes:

1. Numbers 1, 3, and 4 look ok.

2. The 12.566 I have above should be 12.56 if we are using 3.14 for pi. I used pi from the calculator which uses 3.14159....

## Answer this Question

## Related Questions

- Algebra - A circular aboveground pool has a diameter of 8ft and stands 5.5ft off...
- Algebra - A rectangular swimming pool that is 10 ft wide by 16 ft long is ...
- geometry - A room is 11ft by 21ft and it needs painted. The ceiling is 8ft above...
- MATH - A CIRCULAR COFFEE TABLE HAS A DIAMETER IF 5FT. WHAT WILL THE COST BE TO ...
- Geometry - given ABCD IS A rectangle . IF BC =5ft and AB =8ft find the missing ...
- math check - Would some please check these and see if I am doing them right ...
- Geometry - The figure is formed from tectangles. Find the total area 8Ft 5ft 3ft...
- Math - find the surface area and volume of a similar figure that is larger by ...
- calculus - What is the volume of a spherical dome with radius 5.5ft and height 3...
- geometry - Determine the volume of the figure. The base of the pyramid is the ...

More Related Questions