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Alja [10]
3 years ago
11

Find the percent of increase. Original Price: $135 Retail Price: $162

Mathematics
1 answer:
dlinn [17]3 years ago
5 0

20%

Here's a tip: Always start percentage calculating with dividing the current number by 10.

You might be interested in
Long division<br> 3x+1/6x^6+5x^5+2x^4-9x^3+7x^2-10x+2
inna [77]
(6 x^{6}+5x^{5}+2x^{4}-9x^{3}+7x^{2}-10x+2) / (3x+1)

We divide first number from first parenthesis with first number from second parenthesis. Then the resulting number we multiply by all numbers in second parenthesis and substract from first parenthesis.

6 x^{6}/3x = 2 x^{5} \\  \\ 6 x^{6}+5x^{5}+2x^{4}-9x^{3}+7x^{2}-10x+2 - 6 x^{6} -2 x^{5} = 3x^{5}+2x^{4}-9x^{3}+7x^{2}-10x+2\\

We repeat previous steps until we run out of numbers:
3x^{5}/3x=x^{4} \\ \\ 3x^{5}+2x^{4}-9x^{3}+7x^{2}-10x+2-3x^{5}-x^{4}= \\ \\ x^{4}-9x^{3}+7x^{2}-10x+2 \\ \\ \\ x^{4}/3x= \frac{1}{3} x^{3} \\ \\ x^{4}-9x^{3}+7x^{2}-10x+2-x^{4}- \frac{1}{3} x^{3}= \\ \\ - \frac{28}{3} x^{3}+7x^{2}-10x+2 \\ \\ \\ - \frac{28}{3} x^{3}/3x= - \frac{28}{9} x^{2} \\ \\ - \frac{28}{3} x^{3}+7x^{2}-10x+2+ \frac{28}{3} x^{3}+ \frac{28}{9} x^{2} = \\ \\ \frac{91}{9} x^{2}-10x+2
\frac{91}{9} x^{2}/3x=\frac{91}{27} x \\ \\ \frac{91}{9} x^{2}-10x+2-\frac{91}{9} x^{2}-\frac{91}{27} x= \\ \\ -\frac{361}{27} x+2 \\ \\ \\ -\frac{361}{27} x/3x=-\frac{361}{81} \\ \\ -\frac{361}{27} x+2+\frac{361}{27}x+\frac{361}{27}= \\ \\ \frac{415}{27}

We are left with a number that has no x inside. This is remainder.
The final solution is sum of all these solutions and remainder:
(2 x^{5}+x^{4}+\frac{1}{3} x^{3} - \frac{28}{9} x^{2} +\frac{91}{27} x)+(-\frac{361}{81} )
6 0
3 years ago
Jo rode her bicycle 8 miles on Tuesday and 10 miles on Wednesday. What is the mean number of miles she rode her bike in the two
Contact [7]
Mean equals average

So 8 plus 10 equals 18

18 divided by 2 is 9

Mean is 9
6 0
3 years ago
The lines intersect at point C. What is the value of x? A. 159 B. 100 C. 80 D. 21
KIM [24]
I would say B, but do you have a graph to show? I'm confused.
3 0
3 years ago
A backpack is normally $64.99 but is discounted ti $45.49. What percent of the original does Maria pay?
Setler [38]

Answer:30%

Step-by-step explanation:

3 0
2 years ago
Help to solve. B. Present in the form of a fraction.
Studentka2010 [4]
I hope this helps you

8 0
3 years ago
Read 2 more answers
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