First, divide 648 by 9. 648/9=72. Now we know that Ashley covers 72 miles in an hour. In order to get the number of miles she covers in 7 hours we must multiply 72 by 7 which equals 504. So Ashley would drive 504 miles in 7 hours.
Bike A after 6 months : 25(6) + 500 = 150 + 500 = 650
Bike B after 6 months : 50(6) + 200 = 300 + 200 = 500
Bike B is cheaper after 6 months
Answer:
It’s 10n+12
They put the 2 n’s as an exponent
Step-by-step explanation:
To solve a square root, get the ^2 on one side and the 81 on the other side.
add 81 to both sides.
c^2 = 81
to clear the power of 2, take the square root of both sides.
c = + - sqrt81
c = + - 9
c = 9 and c = -9
The first equation above is exponential; the second one is a quadratic; the third one is a line with a y-intercept at the origin. Of those, the exponential one grows fastest.