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iogann1982 [59]
3 years ago
9

A jar contained 18 red marbles, 14 green marbles, and 20 blue marbles. A marble was selected at random, the color was recorded,

and the marble was placed back in the jar. The table shows the results after 60 trials.
What was the relative frequency of selecting a blue marble?

Enter your answer in the box to the nearest percent.


%

Outcome Number of times outcome occurred
Red 22
Green 18
Blue 20
Mathematics
2 answers:
erik [133]3 years ago
7 0

Answer:

I think the answer was 33%.

Step-by-step explanation:

DIA [1.3K]3 years ago
4 0

Answer:

33%

Step-by-step explanation:

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Juan wishes to build a garden at the bottom of his property. He wants to split it in two, like the diagram below, so he can plan
SCORPION-xisa [38]

Answer:

20 ft by 60 ft

Step-by-step explanation:

"What should the dimensions of the garden be to maximize this area?"

If y is the length of the garden, parallel to the stream, and x is the width of the garden, then the amount of fencing is:

120 = 3x + y

And the area is:

A = xy

Use substitution:

A = x (120 − 3x)

A = -3x² + 120x

This is a downward facing parabola.  The maximum is at the vertex, which we can find using x = -b/(2a).

x = -120 / (2 · -3)

x = 20

When x = 20, y = 60.  So the garden should be 20 ft by 60 ft.

4 0
3 years ago
3. Try It #3 Write the point-slope form of an equation of a line with a slope of -2 that passes through the point (-2,2). Then r
vova2212 [387]

Answer:

Point-slope form of equation given as $y-2=-2(x+2)$.

Slope-intercept form of equation is given as $y=-2 x-2$.

Step-by-step explanation:

In the question, it is given that the slope of a line is -2 and it passes from (-2,2).

It is asked to write the point-slope form of the equation and rewrite it as slope-intercept form.

To do so, first find the values which are given in the question and put it in the formula of point-slope form. Simplify the equation to rewrite as slope-intercept form.

Step 1 of 2

Passing point of the line is (-2,2).

Hence, $x_{1}=-2$ and

$$y_{1}=2 \text {. }$$

Also, the slope of the line is -2.

Hence, m=-2

Substitute the above values in point-slope form of equation given by $y-y_{1}=m\left(x-x_{1}\right)$

$$\begin{aligned}&y-y_{1}=m\left(x-x_{1}\right) \\&y-2=-2(x-(-2) \\&y-2=-2(x+2)\end{aligned}$$

Hence, point-slope form of equation given as y-2=-2(x+2).

Step 2 of 2

Solve y-2=-2(x+2) to write it as slope-intercept form given by y=mx+c.

$$\begin{aligned}&y-2=-2(x+2) \\&y-2=-2 x-4 \\&y=-2 x-4+2 \\&y=-2 x-2\end{aligned}$$

Hence, slope-intercept form of equation is given as y=-2x-2.

7 0
2 years ago
Please Help. ASAP!!
Ratling [72]

Answer:

Equation:   x + (x+ 1) = 67

Step-by-step explanation:

We want to find two consecutive integers.

Let them be labeled as  x and x + 1

We want  x + (x + 1) = 67

x is the smaller number

x + 1 is the largest

We can solve for x.

x + (x + 1) = 2x + 1 = 67

2x = 66

x = 33

The largest integer is 34

3 0
2 years ago
If there are 7 blue chips and 5 red chips in a bag, what is the probability of drawing a blue chip?
Kazeer [188]

Answer:

7/12

Step-by-step explanation:

7+5=12

12-5=7

7/12

6 0
3 years ago
Read 2 more answers
Y varies directly as x, if y = 8 , when x=4, find y when x =48
kaheart [24]

Answer:

y = 24

Step-by-step explanation:

8 : 4 : : y : 48

8 / 4 = y / 48

1 / 2 = y / 48

y = 48 / 2

y = 24

5 0
2 years ago
Read 2 more answers
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