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Kobotan [32]
2 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]2 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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Rick's office recycled a total of 60 kilograms of paper over 15 weeks. How many weeks will it take Rick's office to recycle a to
Thepotemich [5.8K]

18 weeks. All you need to do was 60 divide by 15 and you get 4. You taake the 72 kilograms and divide that by 4 and you should get the weeks.

4 0
3 years ago
Help fast please pleaseeeee​
castortr0y [4]

Answer:

C. 3x + 30

Step-by-step explanation:

Distribute:

=(5)(2x) + (5)(6) + −7x

=10x + 30 + −7x

Combine Like Terms:

=10x + 30 + −7x

=(10x + −7x) + (30)

=3x + 30

3 0
2 years ago
Read 2 more answers
Taylor planned to walk her dog for 7/8 of a mile. Her dog stopped every 1/8 of a mile to sniff around. How often did they end up
serg [7]

Answer:

7 times

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Q 1.) Expand using identities:<br>i. (a+2b)²<br>ii. (5x-3y)²<br>iii. (3a+4)(3a-4)(9a²+16)<br>​
Ganezh [65]

Step-by-step explanation:

#1.

(a + 2b)²

<em>Using identity (x + y)² = x² + 2xy + y², we get:</em>

= (a)² + (2b)² + 2 × (a) × (2b)

= a² + 4b² + 4ab

= a² + 4ab + 4b² Ans.

#2.

(5x - 3y)²

<em>Using identity (a - b)² = a² - 2ab + b², we get:</em>

= (5x)² + (3y)² - 2 × (5x) × (3y)

= 25x² + 9y² - 30xy

= 25x² - 30xy + 9y² Ans.

#3.

(3a + 4)(3a - 4)(9a² + 16)

<em>Using identity (x + y)(x - y) = x² - y², we get:</em>

= [(3a)² - (4)²][9a² + 16]

= (9a² - 16)(9a² + 16)

= (9a²)² - (16)²

= 81a⁴ - 256 Ans.

4 0
2 years ago
What is 79 1/2% of $7570?
Mariulka [41]

Answer:

$6018.15

Step-by-step explanation:

"is" number always goes on TOP "of" number.

"is" number is 79 1/2%

"of" number is $7570

<em>79 1</em><em>/</em><em>2</em><em> </em><em>%</em><em> </em><em>/</em><em> </em><em>$</em><em>7570</em><em> </em><em>*</em><em> </em><em>100</em><em> </em><em>=</em><em> </em><em>$</em><em>6018.15</em><em> </em>

<em>To</em><em> </em><em>find</em><em> </em><em>out</em><em> </em><em>if</em><em> </em><em>the</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>correct</em><em> </em><em>:</em>

<em>6018.15</em><em> </em><em>/</em><em> </em><em>7570</em><em> </em><em>*</em><em> </em><em>100</em><em> </em><em>=</em><em> </em><em>79.12</em><em>%</em>

5 0
3 years ago
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