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bazaltina [42]
3 years ago
10

What is the difference between

Mathematics
2 answers:
andrew11 [14]3 years ago
4 0
The answer above is correct
ankoles [38]3 years ago
3 0

we are given

\sum _{n=0}^4\:\left(1+3n\right)

we can find it's sum

\sum _{n=0}^4\:\left(1+3n\right)=(1+3*0)+(1+3*1)+(1+3*2)+(1+3*3)+(1+3*4)

\sum _{n=0}^4\:\left(1+3n\right)=35

now, we can find second sum

\sum _{i=2}^6\:\left(3i-5\right)=(3*2-5)+(3*3-5)+(3*4-5)+(3*5-5) + (3*6-5)

\sum _{i=2}^6\:\left(3i-5\right)=35

so, we can see that

both sums are 35

so, their difference will be 0

option-A.........Answer

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3 years ago
julian want to buy a new ipod that costs $220. he goes into a store and sees that it is on sale and has a 35% discount. he will
tigry1 [53]

Answer:

The final cost for him is;

\text{ \$154.44}

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C=\text{ \$220}

The store gives a 35% discount, which means he will only pay 65% of the original cost;

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The store price is;

\begin{gathered} P=\text{ 65\% of \$220} \\ P=\frac{65}{100}\times\text{ \$220} \\ P=\text{ \$143} \end{gathered}

Also he will need to pay additional 8% sales tax on the discounted price P;

\begin{gathered} t=8\text{\% of P} \\ t=8\text{\% of \$143} \\ t=\frac{8}{100}\times\text{ \$143} \\ t=\text{ \$11.44} \end{gathered}

The final cost he need to pay is the sum of the discounted price and the sales tax;

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Therefore, the final cost for him is;

\text{ \$154.44}

5 0
1 year ago
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