2 years ago

Calculate the average: 5, 20, 15, 18, 20, 19. 12, 16, 10. 15

Mathematics

1 answer:

ella [17]2 years ago

8 0

Answer:

Step-by-step explanation:

5+20+15+18+20+19+12+16+10+15=150/10=15

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{2x + 3y = 5}{ y= 5 x -4}

Natasha_Volkova [10]

Solve the system using substitutions:

$\begin{gathered} 2x+3y=5 \\ 2x+3(5x-4)=5 \\ 2x+15x-12=5 \\ 17x=5+12 \\ 17x=17 \\ x=\frac{17}{17} \\ x=1 \end{gathered}$

x has a value of 1. Use this value to find the value of y.

$\begin{gathered} y=5x-4 \\ y=5\cdot1-4 \\ y=5-4 \\ y=1 \end{gathered}$

y has a value of 1.

x=1

y=1

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1 year ago

What is the equation of the line?

gizmo_the_mogwai [7]

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y=undefined

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2 years ago

Whats 4x=28? whats the x for the answer?

Alik [6]

76 is the answer for x.

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2 years ago

A game field is 360 feet long. The practice field is 2/5 shorter than the practice field. How long is the game field?feet

vlabodo [156]

Answer:

The practice field is 144 feet long.

Step-by-step explanation:

360 x 2/5 = 144

(You would multiply these numbers NOT divide!)

To check my math:

2/5 = 0.4

144/360 = 0.4

By doing the above check, I know the two equations are the same. By seeing this I can know that the answer is correct.

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2 years ago

Identify the form of quadratic. *<br> f (x) = 2x2 – 5x + 7

TiliK225 [7]

Answer: The answer is -x+7

Step-by-step explanation:

Multiply the numbers 2 * 2=4

=4x-5x+7

Add similar evidence 4x + -5x =-x

-x+7

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2 years ago