Answer:
D
Step-by-step explanation:
C=0.05M+40
Cost = 5 cents per minute plus 40 dollars
When the shape is a circle, its perimeter is called the
"circumference" of the circle.
The circumference of a circle is always (pi) times its
diameter.
(pi) is roughly 3.1416 . So if the diameter is 4 meters,
then the circumference is
12.5664... meters .
Rounded to the nearest hundredth, that's 12.57 meters.
We need to find the scale factor, which is given as
![\text{factor}=\frac{115\text{ meters}}{\text{23 millimeters}}=5](https://tex.z-dn.net/?f=%5Ctext%7Bfactor%7D%3D%5Cfrac%7B115%5Ctext%7B%20meters%7D%7D%7B%5Ctext%7B23%20millimeters%7D%7D%3D5)
then, this means that 1 millimeter : 5 meters
Answer:
- f(5), t=5 Minutes.
- f(60), t=60 Minutes
Step-by-step explanation:
f(t) is the temperature of the yam t minutes after it is placed in the oven.
- In f(5), t=5 Minutes, therefore f(5) is the temperature of the yam 5 minutes after it is placed in the oven. At f(5), the yam is still in the oven since it is not yet up to 45 Minutes.
- In f(60), t=60 Minutes, therefore f(60) is the temperature of the yam 60 minutes after it is placed in the oven. Since the yam is taken out after 45 minutes, at f(60), the yam is no longer in the oven.
Let f and t be the number of fives and tens respectively...
f+t=138
f=138-t and we are told that:
5f+10t=1015, using f from above in this equation gives you:
5(138-t)+10t=1015
690-5t+10t=1015
690+5t=1015
5t=325
t=65 and since f=138-t,
f=73 so
Alice has 73 fives and 65 tens.