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3 years ago

Gasoline costs $3.37 per gallon. Mary's father puts 9i gallons in the tank of his car. How much will the gasoline cost?

Mathematics

1 answer:

Basile [38]3 years ago

5 0

9 gallons of gasoline would cost 30.33

9 x 3.37=30.33 you just have to multiply the gas by the gallons and then that will give you your answer

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Simplify 7x²+3x-5x²-10x

solmaris [256]

Answer:

2x²-7x

Step-by-step explanation:

7x²-5x²=2x²

10x-3x=7x

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3 years ago

The slope of the line whose equation is x + y = 6 is: -1 1 6

nadya68 [22]

Answer:

the slope of the line x+y = 6 is -1.

Step-by-step explanation:

slope = - coefficient of x

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coefficient of y

slope = -1 /1

slope = -1

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3 years ago

You need to solve a system of equations. You decide to use the elimination method. Which of these is not allowed?

Serggg [28]

Answer:

Step-by-step explanation:

The <u>Elimination Method</u> is the method for solving a pair of linear equations which reduces one equation to one that has only a single variable.

If the coefficients of one variable are opposites, you add the equations to eliminate a variable, and then solve.
If the coefficients are not opposites, then we multiply one or both equations by a number to create opposite coefficients, and then add the equations to eliminate a variable and solve.

When multoplying the equation by a coefficient, we multiply both sides of the equation (multiplying both sides of the equation by some nonzero number does not change the solution).

So, option B is not allowed (it is not allowed to multiply only one part of equation)

8 0

3 years ago

Logan's e-reader sent a notification saying that he has completed 75% of the e-book.

Vika [28.1K]

Answer:

The total number of pages in the e-book is 240.

Step-by-step explanation:

Given:

Logan has completed 75%

Logan has read 180 pages

To Find:

The total number of pages in the e-book= ?

Solution:

Let X be the total number of pages on the e-book

then

=> 75% of X = 180

Now lets find the value of X

X = $\frac{180}{75\%}$

X = $\frac{180}{\frac{75}{100}}$

X = $\frac{180}{0.75}$

X = 240

5 0

3 years ago

Name the subsets of the real numbers to which each number belongs. The square root of 11

Zolol [24]

Well the answer for the square root of 11

irrational number

and real number

4 0

3 years ago