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Akimi4 [234]
2 years ago
11

What is the percent change from $30 to $33? Is this a percent increase or decrease? Show your reasoning. ​

Mathematics
1 answer:
tekilochka [14]2 years ago
6 0

Answer: 110% increase

Step-by-step explanation: An increase of 110%. 30x1.1=33

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Tony and Ricky spend a certain amount of money from their accounts each week at a pet shelter. The table shows the relationship
andriy [413]
<span>Function 1:

Number of Weeks (x)          Amount Remaining (dollars) (y)

1                                           30
2                                           24
3                                           18
4                                           12

You find the rate of weekley rate of change by calculating the difference of the amont remaing between two weeks:

24 - 30 = - 6

18 - 24  = - 6

12 - 18 = - 6

As you see the rate of change is constant: - 6 dollars per week. 


The equation shows the relationship between the amount of money, y, remaining in Ricky's account and the number of weeks, x:

Function 2: y = –7x + 30 Which statement states and explains which function shows a greater rate of change?

The rate of change is the slope of the linear function, and this is the coefficient of the independent variable, x. Then the rate of change is - 7 dollar per week. Now you know that the two rates are constant and that the second function shows a steeper decreasing.


</span>
7 0
3 years ago
Read 2 more answers
What is the equation of this graph? <br><br>a) y=-1 <br>b) x=-2<br>​
Ivan

Answer:

a) y=-1

Step-by-step explanation:

Graph is intersecting y-axis at (0,-1)

So equation of the graph is y = - 1

4 0
2 years ago
-2-(3(x+6)-9-(7-x)-3x
olchik [2.2K]

Answer:

- 24 - 5x

Step-by-step explanation:

1) Remove Parentheses

-2 - 3x - 6 - 9 - 7 + x - 3x

2) Collect like terms

( -2 - 6 - 9 - 7) + (-3x+x-3x)

3) Simplify

7 0
3 years ago
Composite functions question : what's the value?
tester [92]

(f\circ f)(x)=f(f(x))\\\\ (f\circ f)(x)=x^2\Longleftrightarrow f(f(x))=x^2\\\\ f(f(f(f(f(f(2))))))=f(f(f(f(4))))=f(f(16))=256

7 0
3 years ago
How many pairs of numbers add up to 11?l have used calculation find their is 6 pairs But like to know • How could I change how I
Rasek [7]
<span> If all numbers are greater than zero and no repeated numbers exist these are the 5 possible combinations:

 1 + 2 + 8
 1 + 3 + 7
 1 + 4 + 6
 2 + 3 + 6
 2 + 4 + 5. 
 

If one number is allowed to be zero and no repeated numbers exist these are 5  combinations:
</span><span> 0 + 11
1 + 1 + 9
 2 + 2 + 7
3 + 3 + 5
 4 + 4 + 3
5 + 5 + 1
</span><span>
Hope this helps 
 
</span>
6 0
3 years ago
Read 2 more answers
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