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user100 [1]
4 years ago
11

1 tank of propane holds 5 gallons and will last 12 hours. how many gallons of propane is needed for 240 hours.

Mathematics
2 answers:
MAVERICK [17]4 years ago
8 0

5 gallons        x gallons

------------- = ----------------

12 hours       240 hours


using cross products

5 * 240 = 12 * x

1200 = 12 x

divide each side by 12

1200/12 = 12x/12

100 =x

You will need 100 gallons

Anni [7]4 years ago
6 0

If 5 gallons lasts 12 hours we can find the rate

12/5 = 2.4

This is how long each gallon lasts divide this into 240

240/2.4 = 100

100 gallons of propane will be needed.

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You have 1:2 and then you have _:6 so you would divide 6by 2 and get 3. 3:6
4 0
3 years ago
Ten times a number, x, is one-half the sum of the number and three.
kirill [66]

Answer:

10x=1/2(x+3)

Step-by-step explanation:

Hope it helps :)

Brainliest pls? Have a good day/night

4 0
4 years ago
There are 54 players in a beach volleyball club. Nine of the players cannot attend a game night. The coach needs to make even te
Irina-Kira [14]

Answer:

7/9

Step-by-step explanation:

There are 54 players.

Dividing 54 into 6 gives:54/6=9teams

But 9 players are not at the game,

So 54-9=45

Dividing 45 players into teams of 6 players 45/6=7.5 that is 7 teams and 3 players

Therefore the fraction of players in sixth at the game is=7/9

8 0
3 years ago
A small box measures 3 1/3 in. by 2 3/4 in. by 1 5/6 in. high. What is the volume of the box? Show your work
Mashutka [201]

Answer:

The volume is 16 29/36 or 16.81

Step-by-step explanation:

Volume of a box v = Length l × width w × height h

l = 3 1/3 = 10/3, b = 2 3/4 = 11/4, h = 1 5/6 = 11/6

v = 10/3 × 11/4 × 11/6

v = (10*11*11)/(3*4*6)

= 1210/72

V = 605/36

≈ 16 29/36 or 16.81

7 0
3 years ago
HELPPP PLEASE !!!!
PolarNik [594]

Answer:

P(B)= 17/20

Step-by-step explanation:

The audience of the magic show is conformed by a total of 120 people, 52 of which are female and 68 are men.

Within the audience there is a school class of 37, of these students, 17 are female and 20 are male.

If a random member of the audience is selected as a volunteer:

Let "A" represent the event that "the selected volunteer is a student of the class"

And "B" the event that "the selected student is female"

You have to calculate the probability of the selected volunteer being female, given that it is a member of the school class.

Symbolically:

P(B|A)

Using the formula of conditional probabilities you can calculate it as:

P(A∩B)= =

As you can see the probability of the event "The volunteer is female given that it was a student of the school class" means that you already know the selected volunteer was a student and only needed to calculate the probability of that student being female.

P(B)= 17/20

I hope this helps

7 0
2 years ago
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