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Makovka662 [10]
3 years ago
8

a carpet sales person claims that a carpet on sale for 12.95 per square yard is 30 % off its original price. what was the origin

al price

Mathematics
2 answers:
Yakvenalex [24]3 years ago
4 0
Hope I helped good luck

FinnZ [79.3K]3 years ago
3 0
I always set these up as follows:

12.95 over x equals 30 over 100.

12.95 \div x = 30 \div 100
cross multiply 8 to the right and 100 to the left
12.95 x 100 = 30x
1295=30x
1295/30=x
43.166 or 43.7=x
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Dwight deposits $150 into his new savings account. The account earns 5% interest compounded annually.
GrogVix [38]

Answer:

A=\$150(1.05)^{t}  

Step-by-step explanation:

we know that    

The compound interest formula for this problem is equal to  

A=P(1+r)^{t}  

where  

A is the Final Investment Value  

P is the Principal amount of money to be invested  

r is the rate of interest  in decimal

t is Number of Time Periods  in years

in this problem we have  

P=\$150\\ r=5\%=0.05  

substitute in the formula above  

A=\$150(1+0.05)^{t}  

A=\$150(1.05)^{t}  

8 0
3 years ago
Joanna needs a book to prop up a table leg. She randomly selects a book , and selects another book . What is probability that sh
Stolb23 [73]
Id say 40%
because 8 are math so 9 of them are other 
3 0
3 years ago
Daniel got a traffic citation. He had the option of paying 30% of his fine for traffic school. If traffic school cost $240, how
White raven [17]
30% of the fine is $240

Let x = fine
.3x = 240 \\ x = 240  \div .3 \\ x = 800
The fine is $800
5 0
4 years ago
Read 2 more answers
Find the length of the curve y = 3/5x^5/3 - 3/4x^1/3 + 6 for 1 < = x < = 8. The length of the curve is . (Type an exact an
Mashutka [201]

Answer:

\sqrt\frac{387}{20}

Step-by-step explanation:

Arc Length =\int\limits^a_b {\sqrt{1+(\frac{dy}{dx})^2 } } \, dx

y=\dfrac{3}{5}x^{\frac{5}{3}}-  \dfrac{3}{4}x^{\frac{1}{3}}+6

\frac{dy}{dx} =x^{\frac{2}{3}}-\dfrac{1}{4}x^{-\frac{2}{3}}

1+(\frac{dy}{dx})^2 }=1+(x^{\frac{2}{3}}-\dfrac{1}{4}x^{-\frac{2}{3}})^2\\=1+(x^{\frac{4}{3}}-\dfrac{1}{2}+ \dfrac{1}{16}x^{-\frac{4}{3}})

=\dfrac{1}{2}+x^{\frac{4}{3}}+ \dfrac{1}{16}x^{-\frac{4}{3}}

For the Interval 1\leq x\leq 8

Length of the Curve =\int\limits^8_1 {\sqrt{\dfrac{1}{2}+x^{\frac{4}{3}}+ \dfrac{1}{16}x^{-\frac{4}{3}} } } \, dx\\

Using T1-Calculator

=\sqrt\frac{387}{20}

3 0
4 years ago
Please help!!!!!
Naya [18.7K]
Your answer is 80. A triangle’s angles add up to 180 degrees. Therefore, you need to subtract 30 and 70 from 180 to find your answer: 180-(30+70)=80 or 180-70-30=80
5 0
4 years ago
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