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3 years ago

8x²-x+x²+4x-9x²=18 Help meee

1 answer:

5 0

<span>8x² - x + x² + 4x - 9x² = 18

3x = 18 | 8x</span>² + x² - 9x² = 0<span>

x = 6 | divide by 3

Answer: x = 6</span>

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laney pays $0.99 for each song she downloads from the internet. in total she paid $24.75 for songs from the internet. how many s

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Laney would have downloaded 25 songs

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3 years ago

What is the area of each piece of paper that Jodi is cutting out

Reptile [31]

The simplest (and most commonly used) area calculations are for squares and rectangles. To find the areaof a rectangle multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself tofind the area.

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3 years ago

Points S, L, and P on this grid represent the locations of the school, the library, and the park

Vlad [161]

The distance, in units, from the school to the library and then the distance from the library to the park is 15 units.

<h3>What is the length of any line on the graph?</h3>

The distance or length of any line on the graph,

D = √{(x₂ - x₁)² + (y₂ - y₁)²}

where,

d = distance/length of the line between point 1 and 2,

(x₁ , y₁) = coordinate of point 1,

(x₂ , y₂) = coordinate of point 2,

The distance from school to the library is SL, therefore,

$\rm SL = \sqrt{(4-0)^2 + (1-4)^2} = 5\ units$

The distance from library to the park is LP, therefore,

$\rm LP = \sqrt{(-4-4)^2 + (-5-1)^2} = 10\ units$

Now, the distance, in units, from the school to the library and then the distance from the library to the park is 15 units (10 units + 5 units).

Learn more about the Length of the line:

brainly.com/question/16904935

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4 0

1 year ago

Choose the equation and the inequality needed to answer this question.

Flauer [41]

Answer:

Actually, what you said you have so far is not correct. The 2 correct answers are the 1st one (x + y = 15) and the 5th one (15x + 10y > 180)

Step-by-step explanation:

If tutoring French is x hours and scooping ice cream is y hours and he is going to work 15 hours for sure doing both, then we can add them together to get that x hours + y hours = 15 hours, or put simply: x + y = 15.

Now we are going to throw in the added fun of the money he makes doing each. The thing to realize here is that we can only add like terms. So looking at the equation above, we have x hours of tutoring and y hours of scooping, so if we want to add them, we will add those number of hours together to get the total number of hours he worked, which we know to be 15. The same goes for money. If we add money earned from tutoring to money earned from scooping, we need that to be greater than the money he wants to earn which is 180 at least. Because he wants to earn MORE than $180. we use the ">" sign. Since he earns $15 an hour tutoring, that expression is $15x; since he earns $10 an hour scooping, that expression is $10y. Now add them together (and you CAN because they are both expressions relating dollars to dollars) and set the sum > $180:

$15x + $10y > $180. That's why your answer is not correct. Use mine (with the understanding that you care about why yours is wrong and mine is correct) and you'll be fine.

5 0

3 years ago

Look at this set of ordered pairs.

sasho [114]

3,3,4,4,7,11,11,12,13

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3 years ago