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slava [35]
3 years ago
13

a water pail in your backyard has a small hole in it you notice that it has a Drained a total of 3.5 L in 4 days what is the ave

rage change in water volume each day
Mathematics
1 answer:
WITCHER [35]3 years ago
6 0

For this case we have the following data:

Drained 3.5 Liters in 4 days. If we want to know the volume of water per day, we make a rule of three:

3.5 Liters -----> 4days

x Liters --------> 1 day

Where x represents the amount of water drained each day.

So, we have to:

x =\frac{(1 * 3.5)}{4}

x = 0.875 Liters  per day

So, the average change in water volume each day is:x = 0.875 Liters  per day

Answer:

x = 0.875Liters per day


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a car rent is $220 per week plus $0.25 per mile. Find the rental cost for a two week trip of 500 miles for a group of three peop
JulsSmile [24]
Here, Equation is: C = 220x + 0.25y
Where x = number of weeks
y = Distance  in miles,

Now, C = 220(2) + 0.25(500)
C = 440 + 125
C = 565

In short, Your Answer would be $565

Hope this helps!
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3 years ago
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julia-pushkina [17]

Step-by-step explanation:

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What is the correct term? Answer choices given
Ierofanga [76]
The answer is circumcenter because it has to do with triangles!

I hope this helped! Brainliest? :) -Raven❤️
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3 years ago
I’ll give you brainliest for the first person with an answer
raketka [301]

Answer:

1296mm^2

Step-by-step explanation:

Surface Area of the Rectangular Prism to the left on top of the box:

Area of square = lw, 9mm * 9mm = 81mm, then multiply by 2 because 2 of the squares are a part of the surface, giving <u>162mm^2</u>

Area of a rectangle =lw, 9mm * 9mm = 81mm, then multiply by 2 again, because 2 rectangles are a part of the surface, giving <u>162mm^2</u>

So, the total surface area of the rectangular prism to the left on top, is 324mm^2

Surface Area of the Triangular Prism:

Area of a triangle: 1/2bh, and our base length would be 12, because we have to subtract 9 from 21 since the base length of the triangle isn't stated. Anyways, A = 1/2bh, so A = 1/2(12)(9) = 54mm^2, but multiply by two, so we get <u>108mm^2</u>.

Area of the rectangle: lw, so 15mm * 9mm = <u>135mm^2</u>

So, the total surface area of the triangular prism is 243mm^2

Surface Area of the Rectangular Prism at the bottom:

Area of the long rectangles in front = lw, 21mm * 9mm = 189mm^2, multiply by 2, <u>378mm^2</u>

Area of the rectangles to the side = lw, 9mm * 9mm = 81mm^2, multiply by 2, <u>162mm^2 </u>

Area of the rectangle at the very bottom = lw, 21mm * 9mm = <u>189mm^2</u>

So, the total surface area of the rectangular prism at the bottom is 729mm^2

Add all the total surface areas of each shape to get the total surface area of the figure:

324mm^2 + 243mm^2 + 729mm^2 = 1296mm^2

The surface area of the figure above is 1296mm^2

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4 0
2 years ago
The difference between two numbers is 2 and their product is 224. What are the numbers?
Sati [7]

Let x,y be the two numbers. We have two pieces of information:

x-y=2 (the difference between the two numbers is 2)

xy=224 (their product is 224)

From the first equation, we can deduce x=y+2

If we plug this expression in the second equation, we have

xy = (y+2)y = 224 \iff y^2+2y-224 =0

If you solve this equation with the usual quadratic formula you get the solutions

y=-16,\quad y=14

So, you have the following couple of solutions, recalling that x is 2 more than y:

\begin{cases} x = -14\\y=-16\end{cases},\quad\begin{cases} x = 16\\y=14\end{cases}

4 0
3 years ago
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