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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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Jack drove to work in the morning at an average speed of 45 miles per hour. He returned home in the evening along the same route
Dmitry [639]

Answer:

Step-by-step explanation:

Let's say that the time it took him to get to work in the morning is  t hours. Then the time it took him to get home in the afternoon must be 1 - t hours. We know that for any trip, distance equals rate times time or d = rt . That means that the distance he drove to work is given by , but we also know that the distance he drove to get home must be the same distance, because he took the same route (and, presumably, no one picked up him house and moved it while he was at work) so for the trip home we can say  d = 30 × (1 - t) and since the distances are equal, we can say: 

45t = 30 × (1 - t)

45t = 30 - 30t

45t + 30t = 30

75t = 30

t = 30/75

t = 2 /5 hour to drive to work at 45mph

Since ,  d = rt

d = 45 ×(2/5) = 18miles

8 0
3 years ago
Noah said, “When you divide a number by a second number, the result will always be smaller than the first number.”
marshall27 [118]

Answer:

When dividing two fractions by each other, the result will be larger. Dividing two whole numbers, however, will always result in a smaller number because you're taking away a part of the number.

Step-by-step explanation:

8 0
3 years ago
The product of 15 and the sum of a number and 5 expression
Sedbober [7]
(15)(x+5) because product means multiply the two terms tigether
7 0
3 years ago
5x+20=70 <br><br> solve for x
Anarel [89]
5x + 20 = 70
        5x = 70 - 20
        5x = 50
          x = 50/5
          x = 10

5(10) + 20 = 70
     50 + 20 = 70
              70 = 70

hope this helps :)


5 0
3 years ago
Read 2 more answers
Help pleaseeee!
Andrew [12]

a= -3

b= 1

k = 2

h= 0

refer to the attachment

3 0
3 years ago
Read 2 more answers
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