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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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Justin has a rectangular garden measuring 10ft by 16ft that he wants to split diagonally from corner to corner using a fence. Ho
balandron [24]

Answer:

The fence is 18.9 ft long.

Step-by-step explanation:

If you were to create a diagonal line from corner to corner with a square that is 10x16ft, you would have a triangle with 2 known sides and an unknown value. In this case, because you are making a 90° triangle, you can use Pythagorean Theorem:

a^{2} + b^{2} = c^{2}

  • by plugging in the two values given (10 and 16):

10^{2} + 16^{2} = c^{2}

  • solve

100 + 256 = c^{2}

356 = c^{2}

√356 = c

18.9 = c

4 0
3 years ago
For the function above, what is the missing value in the table below:
ollegr [7]
Answer- 4
U need to plug in 1 for x and solve which would be 4
7 0
3 years ago
How do you do number 15 and 17? Help please?
vodomira [7]
15)

m = Miguel Indurian titles amount        l = Lance Armstrong titles amount

they both won titles to the tour de france, if we add all together, they sum up to 12 for both of them
so.. whatever "m" and "l" are, we could say that m + l = 12

now... Miguel won 2 fewer than Lance, so, whatever "l" is, m = l - 2
thus    \bf \begin{cases}
\boxed{m}=l-2\\\\
m+l=12\\
----------\\
\left( \boxed{l-2} \right)+l=12
\end{cases}

solve for "l", to see how many Lance won

how many did Miguel win? well,  m = l - 2

---------------------------------------------------------------------------------

17)

c = mgs amount in 12oz cup of regular coffee at starbucks
d = mgs amount in 12oz cup of regular decaffeinated coffee at starbucks

we know the regular coffee cup, has 13 times more than the decaf, same 12ouncer

thus whatever "c" and "d" are, we know that c = 13d
both 12ouncers put together, yield 280mgs of caffeine

so, one could say that whatever "c" and "d" are, c + d = 280

thus      \bf \begin{cases}
\boxed{c}=13d\\\\
c+d=280\\
----------\\
\left(  \boxed{13d}\right)+d=280
\end{cases}

solve for "d" to see how much is in the decaffed cup

the regular coffee cup?  well c = 13d
8 0
4 years ago
Emily needs 4 eggs for baking her cake.all of the eggs have the same mass
kotykmax [81]

Answer:

120 Grams.

Step-by-step explanation:

In the illustration, the dial is on 30 grams as the increments increase by 5 grams per tick mark. Taking this info, we can say that since the eggs have the same mass then 30 × 4 is equal to 120 grams.

4 0
4 years ago
Evaluate m÷n for m=8 and n = 2
Bond [772]
Answer: 8÷2=4
m=8 and n=2 
6 0
4 years ago
Read 2 more answers
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