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2 years ago

Find the solution to the system of equations graphed here.

Mathematics

2 answers:

svp [43]2 years ago

4 0

This can be solved by finding their point of intersection on the graph, which is at point (1,3).

polet [3.4K]2 years ago

3 0

There is no picture, but you would substitute the first number for the x and the second for the y

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Lucy wants to be exempt from her semester exam. In order for that to happen, she has to average an 85 over 3 test grades. Her fi

anastassius [24]

Answer:

<em>Grades to be scored in 3rd exam = 88</em>

Step-by-step explanation:

Given that average of 3 numbers is 85.

First two numbers are 81 and 86.

To find:

3rd number so that average is 85

Solution:

Let the third number = $x$

Formula for average is:

$Average = \dfrac{Sum\ of\ numbers}{Total\ count\ of\ numbers}$

Here, sum of numbers = $81+86+x =167+x$

Total count of numbers = 3

$85 = \dfrac{167+x}{3}\\\Rightarrow x=255-167\\\Rightarrow \bold{x=88}$

<em>Grades to be scored in 3rd exam = 88</em>

8 0

2 years ago

30 > -6(2X +3)<br> show me how to solve

MA_775_DIABLO [31]

<h3><u>x > -4 is the solution to this inequality.</u></h3>

30 > -6(2x + 3)

Distributive property.

30 > -12x - 18

Add 18 to both sides.

48 > -12x

Divide both sides by -12.

(Because we're dividing by a negative, the inequality sign flips.)

6 0

2 years ago

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What is the are of the figure below

Vladimir [108]

Answer:

The answer would most likely to eight. If not use the formula Base x Height

Step-by-step explanation:

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Nikitich [7]

Answer:

x/2 + y/3 = 1

Step-by-step explanation:

using this formula

x/a + y/b = 1 , where a and b are the coordinates of x and y axes respectively.

7 0

2 years ago

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For some reason my teacher gave this to us and I kinda forgot how to do this from last year... please helppp w/ work or she’s go

WARRIOR [948]

The greatest common factor is...
5a
I got this by...
10: 1,2,5,10
15: 1,3,5,15
25: 1,5,25
The GCF is 5 for the numbers.
For the a's, it's...
a: a
a^3: a×a×a
a^6: a×a×a×a×a×a
The GFC is a.
Then multiple 5 and a, and you get...
5a
The GFC is...
5a
Hope this helps!

8 0

3 years ago