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Cloud [144]
3 years ago
5

Drew is holding a fund-raiser. He is taking donations from his family members to supports a charity. Each family member donates

the same amount. The total amounts donated after 1,2,3 and 4 family members give money are $20, $30, $40, and $50, respectively
Please explain
Mathematics
1 answer:
larisa86 [58]3 years ago
7 0

They each give $10 because the pattern is changing by 10.

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Enter the explicit rule for the geometric sequence.<br><br> 9,6,4,83,…
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Answer:

a_n = 2^(n - 1) 3^(3 - n)


Step-by-step explanation:

9,6,4,8/3,…

a1 = 3^2

a2 = 3 * 2

a3 = 2^2

As we can see, the 3 ^x is decreasing and the 2^ y is increasing

We need to play with the exponent in terms of n

Lets look at the exponent for the base of 2

a1 = 3^2  2^0

a2 = 3^1   2^1

a3 =    3^ 0 2^2

an =   3^      2^(n-1)

I picked n-1  because that is where it starts  0

 n = 1   (1-1) =0

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  n=3  (3-1) =2

Now we need to figure out the exponent for the 3 base

I will pick (3-n)

n =1  (3-1) =2

n =2  (3-2) =1

n=3    (3-3) =0

8 0
3 years ago
Dan got a discount of 4/5 on his grocery bill by using his club card and coupons Emile got a discount of 7/10,Alina got a discou
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Answer:

it is dan

Step-by-step explanation:

because 4/5 is the closest to 1.

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How much would $500 invested at 5% interest compounded continuously be worth after 8 years? Round your answer to the nearest cen
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Answer:

745.88

Step-by-step explanation:

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