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3 years ago

Matthews test grades were 80 92 85 91 and 88 find the mean of his grades

Mathematics

1 answer:

ad-work [718]3 years ago

4 0

80+92+85+91+88=409
436/5=87.2 is the median

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The function y - 3 = 4(x + 2) is in point-slope form. Select the equivalent equation in slope-intercept form

Phoenix [80]

<h2>Answer:</h2>

All we need to do is solve for y.

$y - 3 = 4(x + 2)\\\\y - 3 = 4x + 8\\\\y = 4x + 11$

The answer is <em>A. y = 4x + 11</em>.

7 0

3 years ago

Need help with finding my solution and graphing !

konstantin123 [22]

Answer:

Step-by-step explanation:

Both the equations that you modelled are correct.

Use the substitution method to solve the system of equations

$R+C = 526\\5R+4C=2327\\$

Take the first equation

$R+C=526\\C=526-R$

Now this becomes our third equation and now insert it into our second equation

$5R+4C=2327\\5R+4(526-R)=2327\\5R+2104-4R=2327\\R=2327-2104\\R=223$

Now insert R = 223 in any equation. Lets insert it into equation number three

$C=526-R\\C=526-223\\C=303$

So 223 number of roll papers were sold and 303 number of candles were sold.

I have attached the graph below check it out.

Where both the equations of line intersect is our solution thus we can confirm that our answer is correct.

7 0

3 years ago

Determine the intercepts of the line.

spayn [35]

ANSWER:
y intercept = (0,-6/5)
x intercept = (-3,0)

EXPLANATION:
To find the y intercept you have to substitute the x with zero because the y intercept always lies on the y axis which means that they will always have the coordinates (0,y)
The same goes for the x intercept. To find the x intercept you have to substitute the y with zero because the x intercept always lies on the x axis which means that they will always have the coordinates (x,0)

WORKING OUT:
Given=2x+5x= -6

The y intercept)
x=0
2(0)+5y= -6
5y= -6
y = -6/5 (divide each side of the equation by t to get the y alone)
y intercept = (0,-6/5)

The x intercept)
y=0
2x+5(0)= -6
2x= -6
x = -3 (divide each side of the equation by t to get the x alone)
x intercept = (-3,0)

6 0

3 years ago

What is 2/6 times 3 in its simplest form

lara [203]

Answer:

Step-by-step explanation:

$\frac{2}{6} \times 3 = \frac{2}{6} \times \frac{3}{1}$

$\frac{2}{6} \times \frac{3}{1} = \frac{6}{6} = 1$

7 0

3 years ago

Simplify and put in a Simplified Expression:<br> 12x + 3x2-6-6x

denpristay [2]

Answer:

3(2x+x²-2)

Step-by-step explanation:

12x+3x²-6-6x

collect like terms

6x+3x²-6

factor the expression

3(2x+x²-2)

3 0

2 years ago