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k0ka [10]
3 years ago
14

Round 3..............almost out of points .-.

Mathematics
2 answers:
Sidana [21]3 years ago
8 0
You can use a proportion.

2/3 inch is to 1 hour as 6 2/3 inch is to x hours.

\dfrac{\frac{2}{3}~inch}{1~hour} = \dfrac{6 \frac{2}{3}~inch}{x}

Cross multiply to get

\dfrac{2}{3} x = 6 \dfrac{2}{3}

\dfrac{2}{3} x = \dfrac{20}{3}

2x = 20

x = 10

Answer: It rained for 10 hours.
Dovator [93]3 years ago
4 0
6 2/3 ÷ 2/3
= 20/3 ÷ 2/3
= 20/3 × 3/2
= 20/2
= 10

Answer
10 hours
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3 years ago
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kupik [55]

Answer:

y = 50

Step-by-step explanation:

Firstly, let's make an equation. We know that when y is 15, x is 3. Or, in other words, y is 5 times what x is. Therefore we can use the equation, y = 5x.

Now, just plug x into the equation.

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3 years ago
Read 2 more answers
Can you help me find the volume base area latera area and total area please to this problem
krek1111 [17]

Answer:

BA = 25π,

LA = 25√2π,

TA = 25π + 25√2π,

V = 41 and 2 / 3π

Step-by-step explanation:

We need to determine the height here, as it is not given, and is quite important to us. The height is a perpendicular line segment to the radius, hence forming a 45 - 45 - 90 degree triangle as you can see. Therefore, by " Converse to Base Angles Theorem " the height should be equal in length to the radius,

( Height = 5 inches = Radius

______

Now knowing the height, let's begin by calculating the base area. By it's name, we have to find the area of the base. As it is a circle, let us apply the formula " πr^2 "

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______

The lateral area is simply the surface area excluding the base area, the surface area having a formula of " πr^2 + πrl. " Thus, the lateral area can be calculated through the formula " πrl, " but as we are not given the slant height ( l ) we have to use another formula, l= \sqrt{r^2+h^2} -

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______

And the surface area is the base area + lateral area -

25\pi + 25\sqrt{2} \pi - Surface Area

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The volume of a cone is 1 / 3rd that of a cylinder, with a simple formula of Base * height. Therefore, we can conclude the following -

1 / 3( 25\pi )( 5 )\\= 25 / 3( 5 )( \pi )\\= 41 \frac{2}{3}\pi- Volume = 41 and 2 / 3π

8 0
3 years ago
Find the rate of 250mm to 75cm​
Kruka [31]
If you’re looking for the ratio:

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250:750
1:3

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2 years ago
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