Answer:

Step-by-step explanation:
We have been given that A girl has a square pool with an area of 81 square feet.
Let us find find the each side length of pool by taking square root of 81 as:


We have been given that girl adds a patio which is 3 feet wide around the pool, so each side of pool after adding patio will increase by 6 feet.
So new sides of pool would be 
The total area of the pool and patio would be product of each side.


Therefore, the total area of the pool and patio combined would be 225 square ft.
If mark celebrated his 8th birthday 10 years ago then mark is 18 years old. Jess is twice as old as mark so Jess is 36 years old. Julie is 26 less than mark and jess combined so Julie is 28 years old. Gwen is two years older than Julie so Gwen is 30 years old. The twins are 2 less than 1/3 of gwen so the twins are 8 years old
Answer:
im sorry, but i cant find the answer to your question.
Step-by-step explanation:
Have a good day!
Answer:
-0.89, 4/10, 1/2, 9/8, 2
Step-by-step explanation:
Answer:
4 hours
Step-by-step explanation:
The general formula for distance, rate and time is:
d = rt, where distance is the product of rate multiplied by time
Given that one train is moving at a rate of 70 mph and one is moving at a rate of 62 mph in the opposite direction, the combined distance over time is equal to 528 miles. Using the variable 't' for time:
70t + 62t = 528
Combine like terms: 132t = 528
Divide both sides by 132: 132t/132 = 528/132 or t = 4 hours