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zlopas [31]
3 years ago
13

Maria purchased a prepaid phone card for $15. Long distance calls cost 9 cents a minute using this card. Maria used her card onl

y to make a long distance call. If the remaining credit on her card is $11.76, how many minutes did her call last?
Mathematics
1 answer:
Solnce55 [7]3 years ago
8 0

Answer:

for 33 minutes

Step-by-step explanation:

I got it right

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Simplify. 8u + 9u + 3u - 5u What is the answer?
Helga [31]
Simplify the expression
25u

To find the what answer it is:
Do 11 + 14 = 25
so u = 25 or 25u

Answer: 11u + 14v
Hope this helps! :)
7 0
4 years ago
Logarithms <br> 8^(x-9) = 19^(3x+2)
Sophie [7]
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6 0
3 years ago
Identify the geometric mean of 1/3 and 1/27.
Lesechka [4]

Answer:

1/9

Step-by-step explanation:

To find the geometric mean of two numbers,  multiply them together, then take the square root

G.M = sqrt( 1/3 * 1/27)

        = sqrt(1/81)

       = 1/9

6 0
3 years ago
Sharon is twice as old as brian, and in 5 years the sum of their ages will be 25 years. find their present ages.
Mama L [17]
Sharon is 10
Brian is 5

In five years, they will both be 5 years older, so they will be a combined 10 years older. If you subtract 10 years from 25, that means that right now their ages add up to 15. If Sharon is twice as old as Brian, than her age is made up of 2/3 of the remaining 15 years, and Brian's age is 1/3 of the remaining 15. That means Sharon is 10 and Brian is 5.

If math is needed:

Sharon = x
Brian = y
x = 2y

(x + 5 years) + (y + 5 years) = 25 years
x + 5 + y + 5 = 25
x + y + 10 = 25
x + y = 15
(substitute "x" with "2y")
x + y = 15
(2y) + y = 15
3y = 15
y = 5 ( Brian is 5)
use y value to find x
x = 2y
x = 2(5)
x = 10 ( Sharon is 10)
8 0
3 years ago
Atlanta, GA has a CPI of 168. Seattle, WA has a CPI of 204. How does the purchasing power of an Atlanta resident earning a $32,8
kirza4 [7]

Answer: D, The Seattle resident has 32.21/CPI more than the Atlanta resident.

Step-by-step explanation: This can be solved by figuring out the price per CPI.

5 0
3 years ago
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