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katovenus [111]
2 years ago
11

A car can travel 135 miles with 5 gallons of gasoline. At this rate, how much gallons of gasoline the car needs to travel 675 mi

les?
Mathematics
1 answer:
labwork [276]2 years ago
4 0

Answer:

25 gallons

Step-by-step explanation:

Given

135 miles to 5 gallons

Required

Determine the number of gallons for 675 miles

From the question, number of miles is directly proportional to number of gallons:

So, we have:

135\ miles = 5\ gallons

and

675\ miles = x

<em>Where x represents the number of gallons for 675 miles</em>

Cross Multiply:

135 * x = 675 * 5

135x = 3375

Make x the subject

x = 3375/135

x = 25

<em>Hence, the car needs 25 gallons</em>

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There were 20 boys and 26 girls in a chess club last year. This year the number of boys increased by 30% but the number of girls
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Step-by-step explanation:

Boys

20 + (20 \div 100)30 = \\  = 20 + 0.2 \times 30  =   \\  = 20 + 6 = \\26

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26 - (26 \div 100)15 = \\  = 26 - 0.26 \times 15 =  \\  = 26 - 3.9 = \\  = 22

Total last year 46

Total this year 48

Increase

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2 years ago
If the scale factor of a scale drawing is greater than one, the scale drawing is larger than the actual object
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What is the solution to f (x)=g (x), if f (x)=-x and g (x)=x​
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Answer:

Step-by-step explanation:

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3 years ago
HELP PRECALC DO NOT UNDERSTAND WILL GIVE BRAINLIEST
Olegator [25]

Answer:

  the lower right matrix is the third correct choice

Step-by-step explanation:

Your problem statement shows that you have correctly selected the matrices representing the initial problem setup (middle left) and the problem solution (middle right).

Of the remaining matrices, the upper left is an incorrect setup, and the lower left is an incorrect solution matrix.

__

We notice that in the remaining matrices on the right that the (2,3) term is 0, and the (3,2) and (3,3) terms are both 1.

The easiest way to get a 0 in the 3rd column of row 2 is to add the first row to the second. When you do that, you get ...

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Already, we see that the second row matches that in the lower right matrix.

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The correct choices here are the two you have selected, and <em>the lower right matrix</em>.

3 0
3 years ago
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