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2 years ago

HURRRRYYY Hurry pleaseee use elimination show your work 15y - 9x =-9 -8y+9x=12

1 answer:

6 0

Add the two functions together to get

7y=-3
y=-3/7

Then plug in y to either function to solve for x, I’ll just use the left one

15(-3/7)-9x=-9
-45/7-9x=-9
-9x=-18/7
x=18/7/9

x=2/7

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5xy4 25x2y 5x2y2 What is the greatest common factor (GCF) of the monomials shown above?

FinnZ [79.3K]

Answer:

5xy

Step-by-step explanation:

I'm going out on a limb and assuming exponents.

$5xy^{2} \\25x^{2}y \\5x^{2} y^{2}$

We can note that 5 is a common factor for the coefficients. All the terms share at least one x. All the terms share all least one y. So the GCF of these monomials is 5xy.

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3 years ago

Consider the dot plot which shows the distribution of data collected on the amount of time Jason sleeps each night. Find the dif

Tatiana [17]

Answer:

A) 0.2

Step-by-step explanation:

From least to greatest, the data points are

6, 6, 6, 7, 7, 7, 8, 8, 8, 9

To find the mean, we find the sum of the data points and divide by the number of data points, 10. The sum of the data points is

6+6+6+7+7+7+8+8+8+9 = 72

Dividing by 10, the mean is 72/10 = 7.2.

The median is the middle number in the set. This is 7.

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7.2-7 = 0.2.

8 0

3 years ago

-2(3z+8) = 1/3(9-18z)

snow_tiger [21]

-2(3z+8)=1/3(9-18z)
-6z-16=1/3(9-18z)
-6z-16=1/3(-18z+9)
-6z-16=1(-18z+9)
———-
3
0=57

The input has no solution

5 0

3 years ago

Read 2 more answers

Please check my answer. I got d =11. Find the length of the line segment whose endpoints are (- 5, 6) and (6, 6).

blondinia [14]

Yes,

It is correct.

I am sure of it..
Stay alive |-/

~MisterMistyEyed

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4 years ago

a high school has 1234 students with 305 freshman, 399 sophomores, 262 juniors, and 262 seniors. what is the relative frequency

bekas [8.4K]

Answer:

399/1234

Step-by-step explanation:

The relative frequency is the fraction (ratio) of sophomores to total students.

There are 399 sophomores, and 1234 total students.

So, the relative frequency is 399/1234

4 0

4 years ago