MATHEMATICS HIGH SCHOOL

A hybrid car can travel 40 miles per gallon. Approximately how many gallons of fuel will the car need to travel 20 km? (5 points) [1 mile = 1.6 km]

Answers

Answer 1

Answer:

Answer:

To travel 20 Km, the hybrid car needs 0.3125 gallons of fuel.

Step-by-step explanation:

Proportions

The hybrid car can travel 40 miles per gallon.

Since one mile is equivalent to 1.6 Km, the distance traveled per gallon is 40*1.6 = 64 Km.

Now the distance is expressed in Km, we can find the gallons needed to travel 20 Km, by calculating 20/64 = 0.3125.

To travel 20 Km, the hybrid car needs 0.3125 gallons of fuel.

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What is 1386/1000 in simplest form

Answers

If you would like to write 1386/1000 in the simplest form, you can do this using the following steps:

1386/1000 = 693/500 = 1 193/500

The correct result would be 693/500.

I’m dumb and need helpIs -2 a solution to x < -2? Is -2 a solution
to x < -2? Explain your answers.

Answers

Answer:

See below.

Step-by-step explanation:

x < -2 means that x is any number that is less than -2.

Is -2 less than -2? Answer: No.

A number is equal to itself. A number is not greater than itself or less than itself.

When the solution to an inequality is x < -2, the only values of x that are valid are numbers less than -2. -2 itself is not a valid solution.

Answer:

Step-by-step explanation:

Hmmm ok so yes but i can not explain it

HELP PLEASE???? A walking path across a park is represented by the equation y = –4x + 10. A new path will be built perpendicular to this path. The paths will intersect at the point (4, –6). Identify the equation that represents the new path.

Answers

If you are given a linear equation and you are trying to find a line perpendicular to that line, you do the negative-reciprocal to your slope. What this means is you flip your slope into a fraction and multiply it by -1. So our slope is -4, so the negative reciprocal is $(1)/(4)$ .

Given our slope is 1/4, we can solve for the line by substituting our given points into point-slope form. So

-6 = (1/4)*4 + b
-6 = 1 + b
-7 = b

So our equation is:

y = (1/4)x -7

So our answer is C
Hopes this helps!

Answer:

C. y = 1/4x - 7

Step-by-step explanation:

With perpendicular lines you have to flip

Simplify
21-(x+7)
how do i solve it.

Answers

21 - (x + 7) We would multiple the numbers inside the parenthesis with -

21 - x - 7 Then we simplify

14 - x

Or if it’s equal to 0 and you need to isolate the x then it’s

x = -14

Award me brainliest please if this helped

(x+2) (x+3) what is the answer