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3 years ago

A car averages 12 gallons of gasoline for each 420 miles driven.how much gasoline will it need for 3,360 mile trip

1 answer:

8 0

So first you would divide 3,600 by 420. You should get the answer of 8. Then multiply 8 by 12 to get the total number of gallon needed, which is 96 gallons.

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Mrs.Roberts drives 3/4 miles in 1/2 minute. How many miles can she drive in 1 minute?

mojhsa [17]

Answer:

1 1/2 OR 1.5 in decimal form

Step-by-step explanation:

If Mrs. Roberts drives 3/4 miles in half a minute, 1/2 x what = 1? 2. Multiply both items by 2. 3/4 x 2 = 6/4, also known as 1 1/2 or 1.5 Hope this helped!!

5 0

3 years ago

The graph shows a probability distribution. What is P(2.5≤X≤4)?

jeka57 [31]

Answer:

P(2.5≤X≤4) = 0,3125‬

Step-by-step explanation:

We know that the area under the curve of ANY probability distribution should not be greater than 1.

In this case, we now that 4P = 1, therefore, P=1/4. Where 'P' represents the height of the rectangle that represents the probability distribution.

The probability of P(2.5≤X≤4) will be given by the area of the following rectangle:

(4 - 2.5) × 1,5 = 0,3125‬

Therefore, P(2.5≤X≤4) = 0,3125‬

5 0

4 years ago

Read 2 more answers

If i drive from my town to town a and then to town b and the journey time was 50 minutes what is my average speed

ryzh [129]

Step-by-step explanation:

distance must be given

average speed is distance and time

6 0

3 years ago

Three machines operating independently, simultaneously, and at the same constant rate can fill a certain production order in 36

Dominik [7]

Answer:

Option B - 9 hours

Step-by-step explanation:

Given : Three machines operating independently, simultaneously, and at the same constant rate can fill a certain production order in 36 hours. If one additional machine were used under the same operating conditions.

To find : In how many fewer hours of simultaneous operation could the production order be filled?

Solution :

Let the numbers of hours taken including additional machine i.e. 4 machines be 'x' hours.

So, 3 machines take 36 hours

and 4 machines take x hours.

Then, $x=\frac{3\times 36}{4}$

$x=27$

i.e. 4 machines spend 27 hours to do work.

Number of fewer hours of simultaneous operation could the production order be filled is given by,

$n=36-27=9$ hours

Therefore, the work could be done in 9 hours less.

So, the correct answer is B.

4 0

3 years ago

(2^8 x 3^−5 x 6^0)−2 x 3 to the power of negative 2 over 2 to the power of 3, whole to the power of 4 x 2^28

Veronika [31]

$(2^8\cdot3^{-5}\cdot6^0)^{-2}\cdot\left(\dfrac{3^{-2}}{2^3}\right)^4\cdot2^{28}\\\\=(2^8)^{-2}\cdot(3^{-5})^{-2}\cdot1^{-2}\cdot\dfrac{(3^{-2})^4}{(2^3)^4}\cdot2^{28}\\\\=2^{-16}\cdot3^{10}\cdot\dfrac{3^{-8}}{2^{12}}\cdot2^{28}\\\\=2^{-16}\cdot2^{28}\cdot2^{-12}\cdot3^{10}\cdot3^{-8}\\\\=2^{-16+28+(-12)}\cdot3^{10+(-8)}\\\\=2^0\cdot3^2=1\cdot9=\boxed{9}\\\\Used:\\\\(a\cdot b)^n=a^n\cdot b^n\\\\(a^n)^m=a^{n\cdot m}\\\\a^n\cdot a^m=a^{n+m}\\\\a^{-n}=\dfrac{1}{a^n}$

4 0

4 years ago

Read 2 more answers