Answer:
(A) 6/20 = x/2000
Step-by-step explanation:
To complete your questions, the missing parts are shown below
Sample 1 Sample 2 total
Country 5 3 8
Pop 4 3 7
Classical 3 5 8
Jazz 2 4 6
Rock 6 5 11
Total 20 20 40
The proportion that would predict the number of jazz songs that Mr. McElroy has stored on his MP3 player is given by 6/20
Hence, our required proportion would be
6/20 =x/2000
We cross multiply
20x = 2000 x 6
20x = 12000
Divide both sides by 20
X = 12000/20
X = 600
Hence, our required proportion would be
6/20 = x/2000
Answer:
65 in²
Step-by-step explanation:
1. Break up the figure (We'll do it left to right): We now have 3 rectangles:
<em>(6 - 4) x 4, (4 + 8) x 4, and 3 x 3</em>
2. Find the two lengths: 6 - 4 = <em>2</em>, 4 + 8 = <em>12</em>
3. Find the three areas: 2 * 4 = <em>8</em>, 12 * 4 = <em>48</em>, 3 * 3 = <em>9</em>
4. Add the areas: 8 + 48 + 9 = 65 in²
Billion gallons per day, because the independent quantity is time in days and dependent quantity is volume of water in billion gallons is the one among the following that <span>is the most appropriate unit to describe the rate at which water flows over Niagara Falls. The correct option among all the options that are given in the question is the third option or option "C".</span>
Answer:
(3, 15 )
Step-by-step explanation:
Given the 2 equations
x + y = 18 → (1)
y = 5x → (2)
Substitute y = 5x into (1)
x + 5x = 18
6x = 18 ( divide both sides by 6 )
x = 3
Substitute x = 3 into (2) for corresponding value of y
y = 5(3) = 15
Solution is (3, 15 )
Answer:
You can buy 7 waffle cones.
Step-by-step explanation:
Let sundae = x
Let waffle cones = y
4.25x + 3.75y ≤ 50
4.25 (5) + 3.75y ≤ 50
21.25 + 3.75y ≤ 50
3.75y ≤ 28.75
y ≤ 7.666666666
* round to the nearest whole to get 7
