Answer: Cole and his sister Chloe will take 81 minutes to clean the whole house.
Step-by-step explanation:
Total rooms in the house = 9
Total persons to clean the house = 2 (Cole and his sister Chloe)
Time taken by 1 person to clean one=18 minutes
Time taken by 2 persons to clean one room together=18 divided by 2 = 9 minutes
Time taken by 2 persons to clean 9 rooms (which is the total number of rooms in the house)=9 multiply 9 = 81 minutes
therefore, they will take 81 minutes to clean the whole house.
Answer:
610cm square
Step-by-step explanation:
find the area of the square
find the area of a triangle and multiply it by 2
then add their areas
Answer: 1.587 ounces of sodium chloride
Step-by-step explanation:
We know that 1 ounce is equivalent to 28.35 gr.
So we use this as a conversion factor to find the equivalent amount of sodium chloride in ounces.
If we need 45 grams of sodium chloride then this equals to:
Finally you need 1.587 ounces of sodium chloride
Answer:
x + 4 = 5x - 6
x = 2.5
Step-by-step explanation:
x + 4 = 5x - 6
4 = 4x -6
10 = 4x
x = 2.5
