Answer:
1) 19³=6859
2) 16² =256
3) 15³ =3375
4) 20² =400
5) 10³ =1000
Step-by-step explanation:
using your calculator to (square = number times itself) or (cube = number times itself times itself again)
Answer:
F = -79.78
Step-by-step explanation:
You need to set F by itself
5/9(F-32) = -62.1
multiply the reciprocal of 5/9 on both sides to eliminate 5/9. The reciprocal is 9/5
-62.1 times 9/5
= -111.78
F-32 = -111.78
add 32 on both sides to get F by itself.
-111.78 + 32 = -79.78
Your final answer
Answer:
$16 per pound
Step-by-step explanation:
We want to find the price per pound.
Therefore, we must divide the cost by the pounds.
We know it costs $144 for 9 pounds of pears. Therefore, $144 is the cost and there are 9 pounds.
Divide.
It costs $16 for each pound of pears.
Answer: 81.85 km/hr
Converting m/sec into km/hr, 25 m/sec = 90 km/hr
Average =
Time = 50/90 = 5/9 hr
next 120 km at an average speed of 80km/h
=> Time = 120/80 = 3/2 hr
last part of its journey at an average speed of 90km/h in 35 Minutes
time = 35 minutes = 35/60 hr = 7/12 hr
Distance covered = 90 * 7 /12 = 105/2 km
Total Distance = 50 + 120 + 105/2 = 435/2 km
Total time = 5/9 + 3/2 + 7/12 = ( 20 + 54 + 21) /36 = 95/36
Average speed = (435/2)/(95 /36) = 432 * 18 /95 = 81.85 km/hr
80 * 70 percent = cookies sold
80 * .7 = cookies sold
56 = cookies sold
