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stepan [7]
3 years ago
6

What is the constant of proportionality?

Mathematics
1 answer:
Damm [24]3 years ago
4 0

Answer:  B) 18

=========================================================

Explanation:

x = number of packs of yogurt (column 1)

y = number of ounces of yogurt (column 2)

To get the constant of proportionality k, we divide y over x

k = y/x

k = 36/2 = 18 .... from row 1

k = 54/3 = 18 ... from row 2

k = 90/5 = 18 .... from row 3

This k = 18 value means that each time x goes up by 1, the value of y goes up by 18. This is the slope of the line y = 18x, so it represents the rate of change.

Put another way: 1 pack of yogurt is 18 ounces

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Given the equation saque root of 2 x+1=3 solve for x
____ [38]

Answer:

x=7/2

Step-by-step explanation:

According to Statement,

√2(x+1)=3

Taking square on both sides,

2(x+1)=9

2x+2=9

2x=9-2

2x=7

x=7/2

5 0
3 years ago
4. If you have 15 pens which cost $0.79
katrin [286]

Answer:

The answer is 15.62

Step-by-step explanation:

To get the answer, you would first multiply 15*0.79 to get 11.85

Then you would multiply 13*0.29 to get 3.77

Lastly, add 11.85 and 3.77 to get your final answer of $15.62

3 0
2 years ago
What is the initial value of the function f(x)=9(2/3)x+4?
Lynna [10]

Answer:

x=-2/3

Step-by-step explanation:

f(x)=9×2/3x+4

0=9×2/3x+4(substitute f (x) =0)

0=9×2/3x+4

0=3×2x+4

0=6x+4

-6x=4( move the variable to left side and change the sign)

Divide both sides.. x=-2/3

8 0
3 years ago
Find the sum and choose the correct answer.
hodyreva [135]
To put it in the simplest words : 
Get rid of the parentheses and add like so: 
2n^3 - 8n^2 + 7 + n^3 + 8n - 9

<span>Combine like terms
2n^3+n^3= 3n^3
-8n^2 remains the same since there are no like terms for it
8n also remains the same
-9+7=-2
Put all of the numbers together
3n^3-8n^2+8n-2
Final answer:
B - the 2nd one</span>
7 0
3 years ago
Find the value of x and y
Arada [10]

Answer:

c

Step-by-step explanation:

3 0
3 years ago
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