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Anettt [7]
3 years ago
5

PLEASE HELP ME

Mathematics
2 answers:
alexdok [17]3 years ago
7 0
The multiply choice were worth 4 points. 
Gretchen= 18x+19
Ezia= 15x+31

So basically you can enter any number. At first I picked 3 and then I did the math and I got 73 points for Gretchen and 76 points for Ezia. 

Then I pick four and then I got 91 points for them both. This is how I got the answer: 

18x+19=15x+31
18(4)+19=15(4)+31
72+19=60+31
91=91

I hope this get a clear understanding of how I got the answer :D
Arada [10]3 years ago
5 0

The <em>correct answer</em> is:

4 points per multiple choice question

Explanation:

Let x be the amount each multiple choice question is worth. Since Gretchen answered 18 of them correctly, we would write this as 18x. Adding the 19 points for the essay question, we have 18x+19.

Since Ezia answered 15 multiple choice questions correctly, we would write this as 15x. Adding the 31 points for the essay question, we have 15x+31.

Since they had the same score, we set these equal to one another:

18x+19 = 15x+31

To solve this, first subtract 15x from each side:

18x+19-15x = 15x+31-15x

3x+19 = 31

Subtract 19 from each side:

3x+19-19 = 31-19

3x=12

Divide each side by 3:

3x/3 = 12/3

x = 4

Each question is worth 4 points.

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Step-by-step explanation:

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Nadia is a stockbroker. She earns 14​% commission each week. Last​ week, she sold ​$7 comma 500 worth of stocks. How much did sh
Artyom0805 [142]

Answer:

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Step-by-step explanation:

In this question, we are looking at calculating two things. We want to calculate the amount of commission made in a week and the amount made in a year.

Firstly, to calculate the amount of commission she made last week, we simply find the percentage.

Mathematically, this is equal simply to:

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She made a commission of $1050 last week

Now, we are told this is the average she makes per week. We now want to calculate how much she makes per year. To do this, what we do is to multiply what she had made in a week by the number of weeks in a year.

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2 years ago
Y=3x-7 Y=3x+4 solving the special system of liner equations ?
DIA [1.3K]

Answer:

No Solution.

Step-by-step explanation:

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y=3x+4

-----------

3x-7=3x+4

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no solution.

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