Q#1-josh just put new tires on his car. if the wheels have a diameter of 14 inches, determine how far will the wheels travel in 3 revolution, to the nearest hundredth?
Q#2-Melanie wants to put ribbon around the circumference of a circular section of the park. Ribbon comes in rolls of 40 feet. The radius of the section of the park is 100 feet. How many rolls of ribbon should Melanie buy?
Q#3-Rodney made a sign for his math teacher in a shape of a circle. The sign has a circumference of 43.96 inches, what would be the area of the sign to the nearest whole inch?
Q#4- how many 6-inch cookies would equal the same amount as one 12- inch cookie?
Q#5 Rhodes ordered a pizza that has diameter of 8 inches.
A. If Rhodes ate 1/4 of the pizza, how many square inches of pizza did he eat to the nearest tenth?
B. How many square inches of the pizza are left, to the nearest tenth?
How would you like us to help you with this assignment?
Well I just needed help solve each of these problems that's all
Q. 1. Multiply the circumference by 3.
Q. 2. Divide the circumference by 40.
After you post your answers to those problems, I'll check them.
On #1 I got 131.88
And on #2 I got 25,120
On number two I got 15.7
On number two I got 15.7 - yes
On number two I got 15.7 - yes -- but you can't buy seven-tenths of a roll,
3.
(43.96 / 3.14) / 2 = r
A = pi * r^2
I'll be glad to check your last two answers.
So would it be about 16 rolls of ribbon or 15
If you bought only 15 rolls, you'd be about 9 inches short.
So 16 is the correct answer
Yes.
Could you please help me with #4 and 5
4. What is the area of a 6-inch cookie? What is the area of a 12-inch cookie?
5. A. What is 1/4 of the area?
B. What is left after he's eaten 1/4?
On #4 both of them have an area of 113.1
My mistake- 6 inch cookie have an area of 28.27 and then 12 inch cookie has an area of 113.1 do I subtract both of them
I get 28.26 square inches for the area of the 6-inch cookie. Divide.
Yes ma'am I got 28.26 it was an accident and do I divide both of them
If I divide them then I can't about five cookies
I mean I get about five cookies
I got 4 cookies.
Oh okay and I don't get number five
5. Find the area. Then follow directions.
I got 12.56 as my area
Nope.
What is the formula for the area of a circle?