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Kobotan [32]
3 years ago
12

Identify the independent and dependent quantity in each situation. The cost of a long distance telephone call increases with the

number of minutes of the call.
Mathematics
1 answer:
blsea [12.9K]3 years ago
8 0
Minutes is independent and the cost is dependent 

time is mostly always independent and cost is depending on the amount of time
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Find the solution of the following system of equations -5+2y=9 3x+5y=7
Rudiy27

Answer:

x=-\frac{28}{3}\\\\y=7

Step-by-step explanation:

Given the system of equations:

\left \{ {{-5+2y=9} \atop {3x+5y=7}} \right.

You can pply Substitution method:

First you must solve for "y" from the first equation:

-5+2y=9\\\\2y=9+5\\\\2y=14\\\\y=\frac{14}{2}\\\\y=7

Therefore, the second and final step to solve the system of equations is to substitute the value of "y" into the second equation and solve for "x":

3x+5(7)=7\\3x=7-35\\\\x=-\frac{28}{3}

5 0
3 years ago
Which of the following investments could be represented by the function A = 250(1 + 0.08/12)12 × 4?
Alekssandra [29.7K]

hello,

the first term is 250 so this is the initial invested amount

(1+\dfrac{0.08}{12})^{12}=(1+\dfrac{8\%}{12})^{12}

is to compute 8% annual interest compounded monthly (there are 12 months in a year)

and then multiply by 4 means that it is computed for 4 years so

finally the answer is

$250 is invested at 8% annual interest compounded monthly for 4 years

hope this helps

7 0
3 years ago
Brendan is adding to his book collection. He buys 6 books for $15 each. How much money does Brendan spend on the books?
kogti [31]
$90

6 multiplied by 15 is 90, thus $90
7 0
3 years ago
Init. Cantian Sinaniiieeintroduction
tatuchka [14]

Answer:

The independent variable is the amount of miles walked, and the dependent is the total from home.

Step-by-step explanation:

4 0
3 years ago
The table contains the proof of the theorem of the relationship between slopes of parallel lines. What is the missing statement
Kipish [7]

Answer:it is the letter A

4 0
3 years ago
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