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Setler79 [48]
3 years ago
12

Write the point-slope form of the equation of the line through the given points: ( – 1, – 2) and ( 1, 4)

Mathematics
1 answer:
otez555 [7]3 years ago
8 0

Answer:

y-1=3(x--1)= 3x-y+4

Step-by-step explanation:

mrk me brainliest plz

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A sign says that the price on all music equipment is 30% off the original price. you buy an electric guitar for the sale price o
Kitty [74]

Answer:

a. So the electric guitar is sold for a sale price of $315 after the discount. The discount was 30%. Even though we get that amount off, we still pay 70% of the original price, because 100% (original price) - 30% is 70%.

b. An equation that can help us find the regular price of the item is through writing and solving a proportion. Set it up like this:

315/x = 70/100

This is because 315 is part of the whole and is 70% of the value of x.

Step-by-step explanation:

Okay. Let's solve this by cross multiplying the values. 315 * 100 is 31,500. 70 * x is 70x. That simplifies to 31,500 = 70x. Didivde each side by 70 to isolate the x. 70x/70 cancels out. 31,500/70 is 450. Let's check this by multiply the number by 70% and see what happens. 450 * 70% (0.7) is 315. There. x = 450. The regular price was $450.

8 0
3 years ago
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A salesman earns $250 per week PLUS a 10% commission on all sales over $5000. In one week, his sales totaled $14,000. What were
Masja [62]

Answer:

B. 1150

Step-by-step explanation:

14000-5000=9000 sales over 5000

9000 x .10=900 commission

250 (salary)+ 900 (commission)=1150 total

6 0
3 years ago
The co-interior angle of 105 degree is ​
MrMuchimi

Answer:

75 \:  \: degrees

Step-by-step explanation:

180 - 105 =7 5

The sum of the co interior angles is 180 degrees

8 0
3 years ago
Help me out plz.........<br>​
Aleks [24]

Answer: try 5/6 hope this helps you out

Step-by-step explanation:

8 0
3 years ago
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Which is one reason why this expression is equal to 0?
Shtirlitz [24]
If there is no expression, it surely is equal to 0.
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3 years ago
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