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Lapatulllka [165]
3 years ago
9

Select all equations that can result from adding these two equations or subtracting one from the other. x+y=12 3x-5y=4 PLZ HELP

QUICK THE TIME IS ALMOST DONE!
Mathematics
1 answer:
lana [24]3 years ago
8 0
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NEEEED HELP!! A company gives each new salesperson a commission of $300 for the sale of a new car. The salesperson will receive
Juli2301 [7.4K]

General Idea:

In an arithmetic sequence, to find the n^{th} term, we need to use the below formula:

a_n=a_1+(n-1)*d

Here a_n gives the n^{th} term

a_1 gives the first term of sequence

d is the common difference and n is the number of terms in the sequence.

Applying the concept:

In our problem it is given that "A company gives each new salesperson a commission of $300 for the sale of a new car",

so a_1=300

"The salesperson will receive a $100 increase for each addition car the person sells that week"

sod=100

"find the number of cars a salesperson must sell to earn $4,200 in a week", this means that we need to find the value of n, when a_n=4200

Setting up the equation based on the arithmetic sequence formula, we get:

4200=300+(n-1)*100\\ 4200=300+100n-100\\ 4200=200+100n\\ 100n+200=4200\\ 100n+200-200=4200-200\\ 100n=4000\\ \frac{100n}{100}=\frac{4000}{100}  \\ n=40

Conclusion:

New Salesperson has to sell 40 cars to earn $4200 in a week.

7 0
3 years ago
lines a and b are parallel. Line c is traversal. Find the measure of all angles formed by a,b, and c, given each senario. One of
madam [21]

Answer:

Because a straight line is 180°, the other angles to these 2 would each be 180°-150°=30°. The same angles would be between line b and line c because line b and line a are parallel and line c is the same. Therefore, the measures of all the angles would be 30° or 150°.

1 answer

Step-by-step explanation:

7 0
3 years ago
Explain how knowing 5 divided by 8 = 0.625 helps you write the decimal for 4 5/8
stepladder [879]
Every fraction is a division problem!!

5/8 - you see that line there? It means to divide.

So knowing that 5/8= .625 can help you turn 4 5/8 into a non fraction number really quick

It's simply 4+ 5/8 (which we know is .625)

So it is 4.625!!

4.625=4 5/8
5 0
4 years ago
Help pls IM so confused
hoa [83]
16 x^{2}
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3 years ago
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2782 is the answer my friend
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4 years ago
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