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vladimir1956 [14]
3 years ago
7

The cost of a long-distance phone call is $0.45 for the first minute and $0.36 for each additional minute. If the

Mathematics
1 answer:
motikmotik3 years ago
5 0

Answer:

19 minutes

Step-by-step explanation:

cost = .45+.36m

If we take 6.93 minus .45 for the minute, we get 6.48. We take 6.48 and divide it by .36 for each additional minute, which is 18. We take the 18 and add one more minute to it since .45 was covered for the first minute.

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A social problem can best be described as:
Reil [10]

Answer:

A.

Step-by-step explanation:

an issue that negatively impacts a group of people.

3 0
4 years ago
Find all values of a such that (a-3)/sqrta=-sqrta
Mariana [72]

Answer:

From the Pythagorean theorem...

 

[ distance between (a, 7)  and  (2, 1) ]2   =   [a - 2]2  +  [7 - 1]2

 

And they tell us that the distance equals  3√5  , so

 

[  3√5 ]2   =   [a - 2]2  +  [7 - 1]2

 

45   =   [a - 2]2  +  36

 

9   =   [a - 2]2

 

±√9  =   a - 2

 

± 3   =   a - 2

 

± 3  +  2   =   a

 

a  =  3 + 2  =  5          or          a = -3 + 2  =  -1

 

and

 

5  +  -1   =   4

Step-by-step explanation:

hope dis helps

3 0
3 years ago
Can someone help me with this problem thank you. Number 5
Jet001 [13]

Answer:8

Step-by-step explanation: 7x8=56

6 0
3 years ago
Read 2 more answers
Solve the simultaneous equations x2 + y2 = 10 and x – 3y + 10 = 0.
ch4aika [34]

Answer:

x = - 1, y = 3  or     (-1 , 3)

Step-by-step explanation:

x – 3y + 10 = 0              x = 3y - 10    ... plug in

x² + y² = 10

(3y-10)² + y² = 10

10y² - 60y +90 = 0

y² - 6y + 9 = 0

(y - 3)² = 0

y = 3

x = - 1

3 0
3 years ago
I forgot!!!!!!<br><br> 52-:-8=?????
ICE Princess25 [194]
6 remainder 4 because if you do 8x6 you get 48 and if you subtract 48 from 52 you get remainder 4
3 0
3 years ago
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