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Dmitry_Shevchenko [17]
3 years ago
11

You want to put 520 quarters in coin wrappers you need one wrapper for every 10$ in quarters write an equation you can use to fi

nd how many wrappers w you need.
Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
3 0
520 divided by 40. That should be correct
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A savings account is started with an initial deposit of $700. The account earns 1.5% interest compounded
marusya05 [52]

Answer:

  (a)  A = 700×1.015^t

  (b)  36.2 years

Step-by-step explanation:

(a) Each year, the account value is multiplied by (1 + 1.5%) = 1.015. Repeated multiplication is signified using an exponent. In t years, when the account has been multiplied by 1.015 t times, the account value will be ...

  A = $700×1.015^t

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(b) You want to find t when A=$1200. Logarithms are involved.

  1200 = 700×1.015^t . . . . use 1200 for A

  1200/700 = 1.015^t . . . . . divide by 700

  log(12/7) = t×log(1.015) . . . . . take logarithms

  log(12/7)/log(1.015) = t ≈ 36.2 . . . . divide by the coefficient of t

It will take about 36.2 years for the account balance to reach $1200.

4 0
3 years ago
What is 4 divided by 631
vagabundo [1.1K]
4÷631=157.75 hope that helps ya!!!!
5 0
3 years ago
What ratio form a poportion with 4/15
Sonja [21]

Answer:

4:15 is the ratio formed by the proportion.

6 0
3 years ago
Cassidy is using six different pontominoes to make a rectangle
SpyIntel [72]

Answer:

D

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D

4 0
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martin was given 10 math problem s and he has answered 7 of them what percent of the problem s does Martin have left to do?
ra1l [238]
7/10 is 70% and 100% - 70% = 30%
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3 years ago
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