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3 years ago

12

A bag contains 6 red marbles, 3 white marbles, and 7 blue marbles. you pick a marble without looking. find the probability of dr

awing a white marble

2 answers:

777dan777 [17]3 years ago

7 0

There's 13 other marbles (not including the white)
It depends how they want you to write it out. It could be 3/13
Or 3/16

babunello [35]3 years ago

4 0

The probably of drawing a white marble is 3/16

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The median number of magazine appearances made by 7 models is 5. The range of number of magazine appearances by those models is

sattari [20]

Answer:not enough information

Step-by-step explanation:

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3 years ago

Read 2 more answers

A couple needs $55,000 as a down payment for a home. If they invest the $40,000 they have at 4% compounded quarterly, how long w

slava [35]

Answer:

8 years

Step-by-step explanation:

Compound interest formula

$A(t)= A_0(1+\frac{r}{n})^{nt}$

A(t) is the final amount 55000

A_0= 40000, r= 4% = 0.04, for quarterly n=4

$55000=40000(1+\frac{0.04}{4})^{4t}$

divide both sides by 40000

$1375=(1+\frac{0.04}{4})^{4t}$

$1375=(1.01)^{4t}$

Take ln on both sides

$ln(1375)=4tln(1.01)$

divide both sides by ln(1.01)

$\frac{ln 1375}{ln 1.01}=4t$

Divide both sides by 4

t=8.00108

So it takes 8 years

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3 years ago

Write a slope-intercept equation of a line that passes through (-3,4) and (3,-8)

Umnica [9.8K]

Y=-2x-2 is the right answer

4 0

3 years ago

The test scores of 40 students are listed below. Find P85.

SIZIF [17.4K]

Answer:

Option A (89).

Step-by-step explanation:

Percentile is a statistic in which the an element at a certain percentage position is determined. To calculate the percentiles accurately, it is important that the data is present in the ascending order. Percentile is an important concept in data analysis. Interestingly, 50th percentile is the median of the data. The difference between the 75th and the 25th percentile is the interquartile range. To find the 85th percentile of the data, calculate 85% of 40, which is the number of elements in the data set. 40 * 85/100 = 34. The number on the 34th position is the 85th percentile of the data. It can be observed that 89 is on the 34th position. Therefore, Option A is the answer!!!

8 0

3 years ago

Question is in picture.

Norma-Jean [14]

Answer:

<h2>B. 2x + y = 4</h2>

Step-by-step explanation:

Having the system of equations in its simplest form

$\left\{\begin{array}{ccc}ax+by=c\\dx+ey=f\end{array}\right$

If

$a=d,\ b=e,\ c=f$

then the system of equations has infinitely many solutions.

If

$a=d,\ b=e,\ c\neq f$

then the system of equations has no solution.

If

$a\neq d\ or\ b\neq e$

then the system of equations has one solution.

We have the equation

$y=-2x+4$

Convert to the standard form Ax + By = C<em>:</em>

<em /> $y=-2x+4$ <em> add 2x to both sides</em>

$y+2x=-2x+2x+4\\\\2x+y=4$

3 0

3 years ago