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Nina [5.8K]
3 years ago
14

Sandra wants to buy a new mp3 player that is on sale for $95 she has saved $73 how much more money does she need

Mathematics
2 answers:
Schach [20]3 years ago
5 0

Answer:

For Sandra to save up and purchase the mp3 she must save additional $22.

Step-by-step explanation:

This problem requires us to understand the concerns of deficit/balance

Step one

We were told that mp3 cost $95

And Sandra has saved $73

Hence for her to purchase the mp3 she has to save up to $95 which is the benchmark price for the item

Step two :

Hence the amount of money to balance up is

=Cost of mp3- Sandra's savings

= $95-$73

=$22

frutty [35]3 years ago
3 0
95 - 73
=22

Sandra needs 22 dollars more to buy a new mp3 player.

I hope this helped you.
Have a wonderful day!!

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Given the sequence in the table below, determine the sigma notation of the sum for term 4 through term 15
goblinko [34]
a_n=5 \ for \ n=1 \\
a_n=-10 \ for \ n=2 \\
a_n=20 \ for \ n=3

You can see it's a geometric sequence because the ratio is constant (\frac{a_3}{a_2}=\frac{a_2}{a_1}).
The nth term of a geometric sequence:
a_n=a_1 \times r^{n-1}

a_1=5 \\
r=\frac{a_2}{a_1}=\frac{-10}{5}=-2 \\ \\
a_n=5(-2)^{n-1}

It has to be the sum for term 4 through term 15, so n=4 and the number above the sigma is 15.

Your answer:
\sum^{15}_{n=4} 5(-2)^{n-1}
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3 years ago
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Please help, picture attached.
lawyer [7]

Answer:

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hope that answers your question

Step-by-step explanation:

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3 years ago
4) A salesperson is paid $60 per week plus $4.50 per sale. This week, the salesperson wants to earn at least $250. How many sale
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。☆✼★ ━━━━━━━━━━━━━━  ☾  

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