Answer:
Option B. is correct
Step-by-step explanation:
Let 
denotes time taken by Mia alone to clean the room and 
denotes time taken by Holly alone to clean the room.
As Mia and Holly can clean their room in 20 min, working together,
Also,
Mia, working alone, can do the job in 30 min.
So,
Put (ii) in (i)
Therefore,
Holly can clean the room alone in 60 minutes.
Option B. is correct
<h3 /><h3>V. Cylinder = π . r² . h</h3>
12,704.44 = 3.14 × r² × 14
12,704.44 = 3.14 × 14 × r²
12,704.44 = 43.96 × r²
r² = 12,704.44/43.96
r² = 289
r = √289
r = 17
<h3>#CMIIW</h3>
Answer:
10/8 or 1 1/5
Step-by-step explanation:
1) distributive property
- 6(x+2)+7=5(x+3)-7(x-2)
- 6x+12+7=5x+15-7x+14
2) combine like terms
3) isolate x
4)simplify
Answer:
151-4=147÷3=49+1=50
151+4=155÷2=77.5×50=3875
3875 is the answer
Step-by-step explanation:
numbers=(last number-first number)÷proximate+1
total=((last number+first number)÷2)×numbers
Step-by-step explanation:
Hope it's help you ♥️♥️
