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2 years ago

6.) A car gets 279 miles on 9 gallons of gas. What is the miles per gallon for the car?

Mathematics

1 answer:

MrRa [10]2 years ago

7 0

Answer:

There are 31 miles per gallon for the car.

Step-by-step explanation:

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Determine the slope of the line given the graph 3,-3 and 0,2

BigorU [14]

Answer:

$\displaystyle m = \frac{-5}{3}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinate Planes

Reading a coordinate plane
Coordinates (x, y)

Slope Formula: $\displaystyle m = \frac{y_2 - y_1}{x_2 - x_1}$

Step-by-step explanation:

Step 1: Define

Identify points

Point (0, 2)

Point (3, -3)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]: $\displaystyle m = \frac{2 + 3}{0 - 3}$
Simplify: $\displaystyle m = \frac{-5}{3}$

7 0

2 years ago

Genius question: A long level railway bridge passes over a railroad track, which is 100 feet below it and at right angles to it.

nataly862011 [7]

Answer: 110 feet per second

Step-by-step explanation:

In this problem we will assume that the car at 45 miles per hour is moving into the x direction with a high of 100 feet, and the train is going in the y direction, so they trajectories will made an angle of 90º.

Now we can calculate the speed of the trains in feet per second so:

$S1=\frac{45*5280}{3600}=66$

$S2=\frac{60*5280}{3600}=88$

So we can make a right triangle with sides 66 and 88 and the hypotenuse will be the rate that the trains will separate per second so:

$h=\sqrt{66^{2} +88^{2} } =\sqrt{4356+7744}$

$h=\sqrt{12100}=110$

Is important to have in mind that the initial high is not going to change how fast the trains will separate, however, if we are going to calculate the distance we should have it in the calculations.

7 0

2 years ago

Is 3,3,7 a triangle

Nina [5.8K]

No. You can’t add the two lower numbers up to make the bigger number making them not a triangle.

8 0

2 years ago

One integer is 4 times another. If the product of the two integers is 16, then find the integers.

natulia [17]

The integer is positive 4.
B/c-
4 • 4 = 16

6 0

2 years ago

Every Pint is 2 cups.Write an equation to express the total number of cups (Z) in (Y) pints.

IceJOKER [234]

Pints = y
Cups = z

2z = y

7 0

2 years ago