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dexar [7]
3 years ago
8

a swimming pool is 30 feet long 20 feet wide and 6 feet deep .There are 7.5 gallons of water in 1 cubic foot.How many gallons wi

ll the pool hold
Mathematics
1 answer:
Virty [35]3 years ago
4 0
In this problem it is asking how many gallons the pool holds. It gives you a method of exchange from cubic feet to this however, so in order to solve for this, we first have to solve for how many cubic feet is in the swimming pool, or how much volume the swimming pool has. The formula for the volume of a rectangle is Length*Width*Depth=Volume. Plugging in what we have we get 30*20*6=Volume, or Volume = 3600. As there are 7.5 gallons of water in each cubic foot, we simply multiply 7.5 times 3600 to get the answer. This is 27000.
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What is the value of the expression below when c - 5 and d - 4 (c is to the second power)?
mina [271]
Well, let's write it out, shall we? 6c2-5d+8 Now plug in the numbers. 6(5^2)2-5(4)+8 Now simplify using PEMDAS Parentheses Exponents Multiplication Division Addition and Subtraction (They go together go from left to right in the equation) 5^2= 5*5 = 25 6 * 25 = 150 150 * 2 = 300 5 * 4 = 20 Rewrite the equation. 150-20+8 Use PEMDAS again ( refer to the previous mentioning) 150 - 20 = 130 130 + 8 = 138
8 0
3 years ago
The price of a mountain bike increased by 20% in the past year the value is $150 what was the value of the mountain bike last ye
n200080 [17]

I hope I am reading the problem right: The price of a mountain bike increased by 20% in the past year. The value is $150. What was the value of the mountain bike last year?

Let's simplify this. One year, there was this radical mountain bike that used to have an unsaid price, <em>x. </em>That year, that price of x increased by 20% more than it was before, or <em>120% times the original value</em>. Because of that, it's now $150.

We can equation this.

1.20x = 150

x = 150/1.2

x = 125

The bike, I believe, cost $125 last year. Hope this helps!


8 0
3 years ago
michael's dad is 30 years of age. He is 2 years more than four times Michael's age m. Write and solve a two-step equation to det
GenaCL600 [577]
The equation used would be:
4m + 2 = 30

where the answer would be 7.
6 0
3 years ago
Read 2 more answers
Which group of numbers even or odd include more prime numbers? Why?
serg [7]

The First group i.e 1-10 include more prime numbers .(2,3,5,7,1)

  • Because it has the basic inputs of every number
  • Like 15 consists of 3×5

7 0
3 years ago
Read 2 more answers
The function ​f(x)​ is the total amount spent at a store, when purchasing x items that are $5 each and the items are not taxable
vagabundo [1.1K]

Answer:

B

Step-by-step explanation:

The domain is all possible values of x.  Here, x is the number of $5 nontaxable items.  So x must be an integer, and it can't be negative.  It is possible for x to be 0.  So x is all whole numbers.

4 0
3 years ago
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