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Kitty [74]
3 years ago
6

Describe and correct the error a student made when graphing y+5=-3/4(x-8).

Mathematics
1 answer:
Elis [28]3 years ago
8 0
In step 1 the y-intercept should be plotted at (0,-6)
Step-by-step explanation:
Remember that to find the Y intercept in any linear equation you need to use 0 as your X value, this means taking the formula in the y=mx+b form and replacing X with a 0.
Since the formula is y = -3/4x -6
We just insert a 0 insted of the "x"
y = -3/4(0) -6
y=0-6
y=6
So the y-intercept sould be placed in (0,-6)
That's what he did wrong when graphing the equation.
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Solve for x.<br><br> 4(x−214)=−3.7<br><br> Enter your answer as a decimal in the box.<br><br> x =
andre [41]
X = 213.075
First you have to get rid of the 4 and since it’s multiplying you to the opposite and that’s dividing.
-3.7 divided by 4 = -0.925
X - 214 = -0. 925
Then you add 214 to -0.925 and get 213.075
7 0
3 years ago
Gary is 3 years older than twice the age of His sister Elena which shows an equation for this situation
Lynna [10]

Answer: G = 2E + 3

<u>Step-by-step explanation:</u>

Let E represent Elena's age.

Then Gary(G) is two times Elena(E) plus 3 --> G = 2E + 3

8 0
3 years ago
Solve for x please thanks​
N76 [4]

Answer:

32

Step-by-step explanation:

So, lets go over what we know:

The equation to find x is the same on both sides.

Now, lets find this equation:

So, the total area of the two lines on the left side of the triangle are 24.

Lets first subtract the first line from the total of the two lines to find the value of the second line:

24-3

=

21.

Now that we know the value of the 2nd line is 21. lets divide it by the first line(3) to find the scale factor:

21/3

=

7

So the scale factor is 7!

Lets plug this in for x.

We know that the first line is 4.

The second line is 7x bigger than 4.

So we can calculate this as:

7x4

=

28

So x is 28!

This is your answer!

Hope it helps! :)

6 0
3 years ago
Vanessa made 60 cupcakes for the party. 5% of the cupcakes were burnt.how many cupcakes did Vanessa burn
zaharov [31]
12 because u gotta divide 60 by 5%
5 0
3 years ago
Read 2 more answers
Alison does 8 math problems in 2 minutes. How long will it take her to do a set of 160 problems?
erastovalidia [21]

Answer:

40 min

Step-by-step explanation:

find unit rateeee  p=problems

8 p= 2 min

8/2=4

so Alison can do 4 math problems per minute

so 160/4= 40 minutes

hope this helps

5 0
3 years ago
Read 2 more answers
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