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-Dominant- [34]
3 years ago
10

The Kwon family has a rainwater catchment system they use to water their garden. The storage tank is 80 inches deep. After 3 hou

rs of rain, the depth of water in the tank is 37 inches. After 5 hours, the depth is 60 inches. If the rain continues to fall at the same rate, how many hours will it take to fill the tank? Round your answer to the nearest tenth.
Mathematics
1 answer:
melisa1 [442]3 years ago
6 0
~~6.7
Just looking at the fifth hour you can divide 60 by five to get twelve as the inches per hour. Then divide that into 80.
Or you could go about it the complex way where you find the slope of a line like this as change in y over change... stuff like that.
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There are 418 students at a school. Han estimates that they each drink about 5 glasses of water each day.
Sauron [17]

Answer:

Step-by-step explanation:

a) together, they all drink about 2,090 glasses of water in one day. (418 * 5 = 2,090).

b) 2,090 * 7 (7 days in 1 week) = They drink about 14,630 glasses of water in one week.

c) 14,630 * 4 (4 weeks in 1 month) = About 58,520 glasses of water in one month.

d) 1,000,000/58,520 ≈ 17. It would take all of the students about 17 months to drink 1,000,000 glasses of water.

Hope that helps!

6 0
3 years ago
Which of the following shows the number 7.12 x 10^-3 written in standard form? Answer choices : 0.00712 : 0.0712 : 0.712 : 7,120
svet-max [94.6K]
<span>written in standard form
</span><span>
7.12 x 10^-3  = 0.00712

hope it helps</span>
7 0
4 years ago
What is the answer I'm so stuck this is so hard for dumb people like me helpppppppp
miskamm [114]
Well I don't remember the equation with all the numbrical stuff but if you times 5 and 5 than times 4 and 5 which is 25 and 20 take 20 away from 25 and you have your answer hope it helps
4 0
3 years ago
Solve this 2 step equation 3x-8=7
Gwar [14]

Answer:

X=5

Step-by-step explanation:

3x-8=7

3x=15 (add 8 to both sides)

X=5 (divide by 3)

4 0
3 years ago
Read 2 more answers
For a club gathering you were having, you bought a total of 50 burgers, and spent $90. You paid $2 per turkey burger, and $1.50
Sedaia [141]

Answer:

<u></u>

  • <u>No. You would have to cut the number of veggie burgers in more than half.</u>

Explanation:

<u>1. Model the situation with a system of equations</u>

<u />

<u>a) Name the variables:</u>

  • number of turkey burgers: t
  • number of veggie burgers: v

<u />

<u>b) Number of burgers:</u>

  • 50 = t + v

<u />

<u>c) Cost of the 50 burgers:</u>

  • $90 = 2t + 1.50v

<u>2. Solve that system of equations:</u>

<u />

<u>a) System</u>

  • 50 = t + v
  • 90 = 2t + 1.50v

<u>b) Mutliply the first equation by 2 and subtract the second equation</u>

  • 100 = 2t + 2v
  •  90 = 2t + 1.50v

  • 10 = 0.5v
  • v = 20 ⇒ t = 50 - 20 = 30

<u />

<u>c) How much would you spend if the next year you buy the double of 20 turkey burgers (40) and the half of 30 veggie burgers (15)</u>

  • $2(40) + $1.50(15) = $80 + $22.50 = $102.50

Then, you if you double the number of turkey burgers, and cut the number burgers in half, you would spend more than $90 ($102.50).

6 0
4 years ago
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