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Kamila [148]
4 years ago
11

Select the letter of the correct answer.

Mathematics
2 answers:
kolbaska11 [484]4 years ago
5 0
First we have to find how much gas was used:
We divide 3.3 by 129 to see how many 3.3 is in 129 (if that make sense)
However, we will get 39.09
Since one gallon is 3.3 miles then 39.09 gallons of gas was used.
So how much is now left we minus 180-39.09 = 140.91
We now find what percentage is 140.91 of 180.
n/100 × 180 = 140.91
n/100 = 140.91/180
n/100 =
n = 0.7828*100
n = 78.28

There n is equal to 78 % to the nearest percent
sveta [45]4 years ago
4 0
Would it be B which is 51%
as you do 129 devided by 3.3 = 39.1
180-39.1= 141
141 is just over half
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Find the approximate volume of the figure below, composed of a cone, a cylinder, and a hemisphere. If necessary, round your answ
mixas84 [53]

Answer:

Volume of the solid = 480.42m³

Step-by-step explanation:

To sov this question, we'll have to break the solid into different shapes of solid to solve it easily.

Volume of a cylinder = πr²h

volume of a hemisphere = 4/3πr³

Volume of a cone = ⅓πr²h

π = 3.14

r = 3m

h(cylinder) = 11m

Slant height of cone = 3√(2)

Height of cone = ?

To find height of cone, we can use pythagorean theorem

a² = b² + c²

[ 3√(2)]² = 3² + c²

9*2 = 9 + c²

C² = 18 - 9

C = 9m

Height of the cone = 9m

Volume of a cylinder = πr²h

V = 3.14 * 3² * 11

V = 310.86m³

Volume of the cylnder = 310.86m³

Volume of the hemisphere = 4/3πr³

V = 3.14 * 3³

V = 84.78m³

Volume of the hemisphere = 84.78m³

Volume of the cone = ⅓πr²h

V = ⅓ * 3.14 * 3² * 9

V = 84.78

Volume of the cone = 84.78m³

Volume of the solid = volume of cone + volume of hemisphere + volume of cylinder

Volume of the solid = 84.78 + 84.78 + 310.86

Volume = 480.42m³

5 0
3 years ago
In rectangle PQRS, PR = 18 x - 24 and QS = x + 146, find the value of x and the length of
Anna [14]

Answer:

The answer is the first one, A

Step-by-step explanation:

8 0
3 years ago
Please help! 50 points
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Find the oz 
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snow_lady [41]
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since 940 is 0.9 from the mean and 0.1 from the first standard deviation
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3 years ago
The vet says Ray's puppy will grow to be at most 28 inches tall. Ray's puppy is currently 1 foot tall. How much more will the pu
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