A school committee consists of 4 girls and 6 boys. How many girls should be added to the committee so that the probability of choosing a student from the committee at random and choosing a girl is 70%?

Answers

Answer 1
An important fact that would help you with this is knowing that
70% = 3/4



Related Questions

7 3/8 divided by 6 as a fraction

Answers

Answer:

[tex] \frac{73}{48} [/tex]

Step-by-step explanation:

.......

What is the slope of the line that passes through the points (4, 6) and (-16, -18)? In the simplest form.

Answers

Answer:

[tex]\displaystyle m=\frac{6}{5}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Coordinates (x, y)Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Point (4, 6)

Point (-16, -18)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]:                                                            [tex]\displaystyle m=\frac{-18-6}{-16-4}[/tex][Fraction] Subtract:                                                                                         [tex]\displaystyle m=\frac{-24}{-20}[/tex][Fraction] Simplify:                                                                                          [tex]\displaystyle m=\frac{6}{5}[/tex]

5x+3y-z-4x-3y-z help please ​

Answers

The simplified version of this x-2z

Step-by-step explanation:

You need to start by combining like terms. You can start with the terms that have the variable x in them. By combining those terms, the equation becomes x+3y-z-3y-z.

From here, you can combine the terms 3y and -3y, which bring the equation to x-z-z.

From here, combine the terms with the variable z. This would bring the equation down too x-2z, your final answer.

In the figure below, Ken's company has placed sprinkler heads at the center of the two small semicircles. The radius
Of the sprinklers is 5ft If the area in the larger semicircular area is the shape of the entire lawn, how much of the lawn will not be watered?

Answers

Answer:

The answer is below

Step-by-step explanation:

The sprinklers have a radius of 5 ft each. Since the larger semicircle (entire lawn) has a diameter that is formed from the 2 semicircles, therefore the radius of the larger semicircle is 10 ft.

Area that wont be watered can be gotten by subtracting the area of the two smaller circles from the area of larger semicircle.

Area that wont be watered = 1/2(π * 10²) - 2[1/2(π * 5²)] = 50π - 25π = 25π ft²

What features do all right trlangles have in common?​

Answers

They all have 3 angles and 3 sides

Answer:

all right trigangles must have a 90 degress angle

Step-by-step explanation:

no

Mel cleans houses. She earns $7.50 every hour she dusts. She earns $10.00 every hour that
she scrubs floors. She scrubbed floors for 1.5 hours and dusted for 2 hours. How much money
did Mel earn?

Answers

Scrubbing the floor=15:00$
Dusting=15:00$
Total:30:00$

Helppp plz I will mark brainliestttt

Answers

Step-by-step explanation:

If x=20 3x/5=12

Then if y=30 3y/5=18

It shows that A'B'C' smaller than ABC

Answer:

The correct statement is D

Step-by-step explanation:

Triangle A'B'C' is a diluted version of triangle ABC, so it would be smaller than triangle ABC since its x-value and y-value are being multiplied by a number less than 1.

if b equals 4 and = 7 what is ad

Answers

Answer:

3

Step-by-step explanation:

I gussed but I'm not sure

what is the reciprocal of 5 1/4​

Answers

5 4/1 is the reciprocal

multiple choice! please help me :)

Answers

pretty sure the answer is c

Jaclyn paid $620 to stay at a hotel. She paid $124 per
night for each of two rooms. How many nights, n, did
Jaclyn stay at the hotel?

Answers

620 = 248n
620/248 = 248n/248
n = 2.5 nights

The solution to 5 - 3x > 35 is either x > -10 or -10 > x. Which soultion is correct? Explain how you know.

Answers

Answer:

x < - 10

Step-by-step explanation:

5 - 3x > 35

-3x > 35 - 5

-3x > 30

Divide both sides by 3

-x > 10

Divide both sides by - 1

x < - 10

The inequality sign will change due to the negative sign.

Consider the expression.

53 · 56

In expanded form: (5 · 5 · 5) · (5 · 5 · 5 · 5 · 5 · 5)

What does the expression simplify to?
53
58
59
518

Answers

Answer:

5^9 : C

Step-by-step explanation:

I got the answer righttttt !!

Answer:

C

Step-by-step explanation:

i got it right

The boundary line of a linear inequality passes through the points (3,0) and (0,6). The points (3,0) and (2,6) are not solutions of the inequality. Write the linear inequality

Answers

Answer:

[tex]y<-2x+6[/tex]

Step-by-step explanation:

The boundary line of a linear inequality passes through the points (3, 0) and (0, 6).

The points (3, 0) and (2, 6) are not solutions of the inequality.

We want to find the equation of the linear inequality.

First, we will simply find the line that crosses the points (3, 0) and (0, 6).

We can determine the slope to be:

[tex]\displaystyle \frac{6-0}{0-3}=\frac{6}{-3}=-2[/tex]

Notice that (0, 6) is the y-intercept.

Then by the slope-intercept form:

[tex]y=mx+b[/tex]

Our equation will be:

[tex]y=-2x+6[/tex]

Now, we will need to determine our inequality sign.

First, (3,0) is on the boundary line yet it is not a solution. Therefore, our line is dotted. That is: we do not have the "or equal to" statement.

So, our inequality signs can only be either < or >.

We are given that (2, 6) is not a solution.

So, we can test for the sign. Substitute 2 for x and 6 for y:

[tex]\displaystyle 6\text{ }?\text{ }-2(2)+6[/tex]

Evaluate:

[tex]\displaystyle 6\text{ } ?\text{ } 2[/tex]

Since 6 is not a solution, the above statement needs to be false.

It will be false is the sign is <, since 2 is not greater than 6.

Therefore, our sign is <.

And our inequality is:

[tex]y<-2x+6[/tex]

the product of two numbers is -72. one of the factors -9, what is the other factor?​

Answers

The product of the -72 could be set up at -72=-9(x).
Divide -9 from both sides and you get the unknown value (x) to be 8

Find x
25
7
х
I need help

Answers

Answer:

24 = x

Step-by-step explanation:

You use Pythagorean theorem. Since the normal equation is [tex]a^{2} + b^{2} =c^{2}[/tex], you already have the [tex]c^{2}[/tex] and another side which can be [tex]a^{2}[/tex] or [tex]b^{2}[/tex].

Because you have the hypotenuse and a side , your equation looks like this now: [tex]7^{2} +b^{2} = 25^{2}[/tex]

and when you solve for be you just subtract [tex]25^{2} -7^{2}[/tex] to get 24.

ANSWER ASAP GIVING BRAINLIEST FIVE STARS AND A HEART!
Two angles are complementary, can they also be supplementary? Explain.

Answers

Answer:

Yes

Step-by-step explanation:

They can because the sum of two Angles is 180, and if they are both 90, they add up to 180, making them congruent.  Hope this helps

Supplementary angles are two angles whose sum is 180 degrees while complementary angles are two angles whose sum is 90 degrees. 

Saying this you should probably infer that if 2 Angles are complementary, then they are 90°.

Meaning you would need 2 pairs of complementary angles to have a supplementary angle (180°).

Plz help thank you it’s one question!!!

Answers

Answer:

96

Step-by-step explanation:

Which is the correct way to evaluate the expression 48−(29−17)?

Answers

Answer:

37

Step-by-step explanation:

Do the peranthesis and then the rest because of PEMDAS. The answer is 32

Kathy distributes jelly beans among her friends. Alia gets 42 fewer jelly beans than Kelly, who gets 33 jelly beans. How many jelly beans does Alia get?

A.

42 − 33

B.

33 + 42

C.

4 − 33

D.

33 − 42

E.

32 − 43

Help fast It's do today

Answers

Answer:

D.  33 - 42

Step-by-step explanation:

Kathy distributes jelly beans among her friends.

Number of jelly beans received by Kelly after distribution of Jellies by Kathy = 33

Also, Alia gets 42 fewer jelly beans than Kelly

Now, we need to find the number of jelly beans received by Alia

So, Number of jelly beans received by Alia = No. of jelly beans received by Kelly - 33

⇒ Number of jelly beans received by Alia = 42 - 33

Therefore, The correct answer is D. 33 - 42

Answer:

The answer is D. i took the test and got it right brainlist plssssssssssss

Step-by-step explanation:


Simplify:
3 (2x - 4)

Answers

Answer:

Step-by-step explanation:

There are 11.5 ounces of cereal in a container. Additional cereal is poured into the container at a rate of 3.15 ounces per second.

Answers

Answer:

It will take 3.65 seconds at the rate it's being poured.

Step-by-step explanation:

erin has 40,000 in a savings account that earns 15% interest per year. the interest is not compounded. how much will she have in 3 months?

Answers

Answer:

$41500

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 15%/100 = 0.15 per year,

putting time into years for simplicity,

3 months ÷ 12 months/year = 0.25 years,

then, solving our equation

I = 40000 × 0.15 × 0.25 = 1500

I = $ 1,500.00

The simple interest accumulated

on a principal of $ 40,000.00

at a rate of 15% per year

for 0.25 years (3 months) is $ 1,500.00.

HELP ME PLEASE
what goes in the box?

Answers

Answer:

Answer :

8/-11

y=8 x=-11

Answer:

16 - 8 / 9 - 20

Step-by-step explanation:

y2 = 16 y1 = 8

x2 = 9 x1 = 20

your answer is going to be 8/-11

Find the least common denominator 1/3 1/5

Answers

15 because 3x5 is 15

Can someone help me on this

Answers

Answer:

um what???????

Step-by-step explanation:

Cada bolsa de canicas que vende la Compañía de Canicas Paola contiene 2 canicas azules por cada 3 canicas verdes. Si una bolsa contiene 12 canicas azules, ¿cuántas canicas verdes contiene?
me ayudan por favor

Answers

Answer:

a tube contains 3 tennis balls how many tennis balls are there in 32 tubes

Using the figure below determine the following ratios. sin A cos A tan A sin B tan B

Answers


sin A: 8/10 cos A: 6/10
tan A: 8/6 sin B: 6/10 tan B: 6/8

An hour before showtime only 105 people have a ride for a concert according to sales 95% of the people have yet to arrive how many tickets were sold for the concert explain

Answers

Given:

An hour before showtime only 105 people have arrived for a concert.

According to sales 95% of the people have yet to arrive.

To find:

The total number of tickets sold.

Solution:

Let x be the total number of tickets sold.

According to sales 95% of the people have yet to arrive.

[tex]100\%-95\%=5\%[/tex]

It means, only 5% people have arrived.

[tex]\dfrac{5}{100}x=105[/tex]

[tex]\dfrac{1}{20}x=105[/tex]

[tex]x=105\times 20[/tex]

[tex]x=2100[/tex]

Therefore, the total 2100 tickets were sold.

Which expression is equivalent to 2(8n)^4

Answers

Answer:

2* 8n* 8n* 8n*8n

Step-by-step explanation:

Break it down 2(8n)^4 because 4 is the exponent you will multiply 8n four times so it will be 8n*8n*8n*8n so add the 2 to it and it will be 2*8n*8n*8n*8n. Hope this help :)  

The expression 2(8n)⁴ is equivalent to 2¹³n⁴ or 8192n⁴ after simplifying.

What is an expression?

It is defined as the combination of constants and variables with mathematical operators.

We have:

[tex]\rm = 2(8n)^4[/tex]

[tex]\rm 2\times 8^4\times n^4\\\\\rm 2\times (2^3)^4\times n^4\\\\\rm 2\times 2^1^2\times n^4\\\\\rm 2^1^3\times n^4\\\\\\\rm 2^1^3 n^4\\\\or\\\\8192n^4[/tex]

Thus, the expression 2(8n)⁴ is equivalent to 2¹³n⁴ or 8192n⁴ after simplifying.

Learn more about the expression here:

brainly.com/question/14083225

#SPJ2

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