Im thinking 10 because 10+40=50 and 10x7=70
Answer:
Step-by-step explanation:
8u - 10u + 8u =
16u - 10u =
6u <===
Answer:
C≈43.98cm
Step-by-step explanation:
C=2πr
d=2r
C=πd=π·14≈43.9823cm
A) A circle if it’s cut parallel to the base
B) The formula of a cylinder is pi r^2
π(7)^2
Area= 49 π
Correct question is;
Caitlin purchased a prepaid phone card for $20. Long distance calls cost 7 cents a minute using this card. Catin used her card only once to make a long distance all the remaining credit on her card is $16.8. how many minutes did her call last?
Answer:
45 minutes 43 seconds
Step-by-step explanation:
We are told that she purchase the prepaid phone card for $20.
Now she has $16.8 after making the call.
Therefore;
Amount spent on the call = 20 - 16.8 = $3.2
We are told that the long distance call costs 7 cents per minute. Which is $0.07 per minutes
Thus, time spent = $3.2/$0.07 = 45.714 minutes or 45 minutes 43 seconds