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sukhopar [10]
4 years ago
14

Help me match these

Mathematics
1 answer:
Hunter-Best [27]4 years ago
8 0
Efaafafwaw :) np. so sorry if wrong
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Mario purchases a prepaid phone plan for $50. Each minute he uses costs $0.13. How many minutes can Mario talk on this plan? Wri
Mekhanik [1.2K]
0.13 cents per minute

$50 per month

13 goes into 5,000 = 384

384 minutes per month
6 0
4 years ago
What is 2 1/8 - 1 2/7 equal to?
Allushta [10]
2 1/8 - 1 2/7 = ?
8*2+1/8 - 7*1+2/7 =
17/8 + 9/7 =

8,7 | 2
4,7 | 2
2,7 | 2
1, 7 | 7
1, 1 | 1_______ 2*2*2*7 = 56

17/8 + 9/7 =
56÷8*17/56 + 56÷7*9/56 =
7*17/56 + 8*9/56 =
119/56 + 72/56 = 191/56

Answer:

191/56
6 0
3 years ago
117. Sami opens an account and deposits $100 into it at the end of each month. The account earns 2% per year compounded monthly.
Sergio [31]

Answer:

The explicit function is:

S_{n} =Pz^{n-1} +C(\frac{z^{n-1}-1}{z-1} )

where

z=(1+\frac{0.02}{12})

and we calculate S12:

S_{12} = $1211.06

Step-by-step explanation:

Expanding a few steps of the compound interest:

S_{1}=100\\S_{2}=S_{1}(1+\frac{0.02}{12})+100\\S_{3}=S_{2}(1+\frac{0.02}{12})+100\\...\\S_{n}=S_{n-1}(1+\frac{0.02}{12})+100

We can write:

(1+\frac{0.02}{12})=z

100=C for deposits

Then, expanding the previous equations would yield:

S_{1}=C\\S_{2}=Cz + C\\S_{3}=Cz^{2}+Cz + C\\S_{n}=Cz^{n-1} +...+Cz+C

This is a geometric series form, which can be simplified to:

S_{n}=C(\frac{z^{n}-1}{z-1} )

plugin in the values for the 12 month gives:

S_{12}=100(\frac{(1+\frac{0.02}{12})^{12} -1}{\frac{0.02}{12}})=1211.0613

6 0
3 years ago
Samantha's dog weighs 14.25 pounds. Eric's dog weighs 43.5 pounds. What is the difference between the two dogs weight?
dmitriy555 [2]

Answer:

29.25

Step-by-step explanation:

Brainliest?

5 0
3 years ago
if the length of the longest side of the rectangle is 20cm find the shaded area to the nearest hundredth PLEASE HELPP !
djverab [1.8K]

Answer:

150pi

Step-by-step explanation:

lets just say the two circles are 10 and 10 in diameter. so, one square is 5 radius. The square is 25pi area. so two are 50pi area. the area of the rectangle is 200, so 150pi

Please tell me if I'm wrong D:

3 0
3 years ago
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