6n-5
Step-by-step explanation:
Answer:
Ratio of boys to girls,
=> 5:4
If there are 60 girls, then the number of boys
= 5 * 15 : 4 * 15
=> 75 : 60
Therefore, there were 75 boys in the choir
If my answer helped, kindly mark me as the brainliest!!
Thank You!!
The rate of Sue is 1 car per hour: 1 (c/h)
then the rate of Steve is 2 (c/h) , because Steve works faster, he can wash twice the number of cars, for the same amount of time.
Thus If Steve and Sue work together, they can wash 1 + 2 = 3
(cars per hour).
That is, the rate of Steve and Sue working together, is 3 (c/h).
In the first 30 minutes, Sue washes half of the car.
The remaining half will be washed at a rate of 3 (c/h)
The main formula is Work = Time * Rate
where Work is washing (1/2)c, and rate is 3(c/h)
Time=Work/Rate =
1/ 6 h =(1/6)*60 min = 10 min
Answer: 10 min
Answer. 68%
Explanation: divide 17 by 25 and you will get .68 which you convert to a percent
A building is 35 feet tall
Answer: D. 35
The scuba diver was 35 feet below sea level.
Answer: A. -35
The basement is 7.6 feet below ground
Answer: E. -7.6
Oliver owes his sister $23
Answer: C. -23
Erica jumped 2.3 feet above ground.
Answer: B. 2.3