Answer:
37.69
Step-by-step explanation:
Since the diameter is 12, the Radius is 6
Circumference equation: 2pi(r)
So we plug it in
2pi(6)
That gives us 37.699
If you need to round, then it would be 37.7.
I really hope this helps!!!
Answer:
Its about 36 feet
Step-by-step explanation:
I took this question before.
I am going to use C to represent cookbook and N to represent N. I find that easier to remember which is which.
Day 1: 5C + 3N = 167
Day 2: 3C + 1N = 89
We need to solve one of these equation for either the C or N. I always choose the easiest one! Day 2 looks like the one.
3C + 1N = 89 (I am doing to solve for N because we won't have a fraction)
1N=89-3C
N=89-3C
Now we take this solution for N and put it into our first equation.
5C + 3(89-3C) = 167 (We need to distribute)
5C + 267 - 9C = 167 (Use subtraction to move C values to the right and numbers to the left)
267-167 = 9C-5C
100 = 4C
25 = C $25 for the Cookbooks.
Now, we have to go back and solve for N by putting $25 in for C in the second equation.
N=89-3(25)
N=89-75
N=14 dollars for each novel.
Check by putting both back into the first equation:
5C + 3N = 167
5(25) + 3(14) = 167. It checks out!
65 miles per hour meaning 65 miles in 60 minutes
65/60 = 1.083mile per minute
125/ 1.083 = 115.4 minutes to drive from san diego to malibu
check
115.4 x 1.083 = 124.97 (round up)
= 125
therefore it takes 115.4 minutes to drive from San Diego to Malibu
