A school has 320 girls and 250 boys the probability of a girl being left handed is 0.2 the probability of a boy being left handed is 0.1 estimate the amount of left handed people there are in the school

Answers

Answer 1

320 girls & 250 boys

0.2 probability     0.1 probability

320 x 0.2 = 64

250 x 0.1 = 25

64 + 25 = 89

There are approximately 89 students in the school that are left-handed.

Answer 2

Answer

89% of the people are left handed

Step-by-Step Explanation

To find this you have to first do 320 x 0.2

320 x 0.2= 64

To find it for boys you have to do 250 x 0.1.

250 x 0.1= 25

SO, the answer is 89%. 64% of girls and 25% of boys

Hope i helped :D


Related Questions

PLEASE HELP ME!!!!
The graph below shows the price of different numbers of cans of beans at a store:

The graph below shows the price of different numbers of cans of beans at a store:


Which equation can be used to determine p, the cost of b cans of beans? (5 points)

p = 9.50 + b
p = 9.50b
b = 9.50 + p
b = 9.50p
Which equation can be used to determine p, the cost of b cans of beans? (5 points)

p = 9.50 + b
p = 9.50b
b = 9.50 + p
b = 9.50p

Answers

Answer:

a

Step-by-step explanation:

4.) 960 meters in 15 seconds
Write the following rate as a unit rate

Answers

Answer:

64

Step-by-step explanation:

960 divided by 15 is 64. The unit rate means one so you are trying to get it to 1 second so just do 15 divided by 15 which is 1, then 960 divided by 15 which is 64

What is the quotient of (x cubed + 3 x squared minus 4 x minus 12) divided by (x squared + 5 x + 6)?

Answers

Answer:

x – 2

Step-by-step explanation:

Answer:

B. x-2

Step-by-step explanation:

Can i have some help please

Answers

Answer:

C)   [tex] -1\frac{5}{8}x + 3 [/tex]

Step-by-step explanation:

[tex] \frac{1}{2}(\frac{3}{4}x + 10) - 2(x + 1) = [/tex]

[tex] = \frac{3}{8}x + 5 - 2x -2 [/tex]

[tex] = \frac{3}{8}x + 5 - \frac{16}{8}x - 2 [/tex]

[tex] = -\frac{13}{8}x + 3 [/tex]

[tex] = -1\frac{5}{8}x + 3 [/tex]

Answer: C)   [tex] -1\frac{5}{8}x + 3 [/tex]

each unit cost 14p. How much do 942 units cost

Answers

Answer:

Answer: Cost of 1 unit = 14 p Cost of 942 unit = 14 × 942 == 13,188 p

Step-by-step explanation:

What is the distance between the points R(5, 7) and S(-2, 3)?​

Answers

Answer:

Step-by-step explanation:

D

The distance between points is √65.

What is distance?

The length of the line that connects two points is the distance between them. The distance can be determined by subtracting the coordinates that are not the same if the two points are on the same horizontal or vertical line.

The distance formula is used in analytic geometry to determine the distance between two lines, the sum of the lengths of all sides of a polygon, the perimeter of polygons on a coordinate plane, the area of polygons, and a variety of other measurements.

Given coordinates

R(5, 7) and S(-2, 3)

to find the distance between

the formula of distance for coordinates is

d = [tex]\sqrt{(y_{2} - y_{1} )^{2} + (x_{2} - x_{1} )^{2} }[/tex]

here y₂ = 3, y₁ = 7

x₂ = -2, x₁ = 5

substitute value in equation we get

d = [tex]\sqrt{({3 - 7 )^{2} + (-2 - 5 )^{2} }[/tex]

d = [tex]\sqrt{({-4 )^{2} + (-7 )^{2} }[/tex]

d = √(16 + 49)

d = √65

Hence the distance is √65.

Learn more about distance;

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Please help! This is due soon!​

Answers

Answer:

try looking at the codes in it, in the coding it says the answer!

Step-by-step explanation:

my brother told me, I tryed it out and it worked, just don't get caught!

Which of the following is true given that -4 > -9?
A.
-4 is to the left of -9 on a horizontal number line
B.
-4 is at the same place as -9 on a horizontal number line
C.
-4 is the opposite of -9 on a horizontal number line
D.
-4 is to the right of -9 on a horizontal number line

Answers

Answer:

d

Step-by-step explanation:

Help ill mark u brainliest

Answers

Answer:

m∠ONB = 81°

Step-by-step explanation:

If angle MNJ and angle ONB are congruent and MNJ is 81 degrees and OJ is a straight line then ONB should also be 81 degrees in which the other side is 99 degrees.

What is the distance between the points (4, -2) and (1, 2)

Answers

Step-by-step explanation:

because

so √(-3)²+(4)²

√25=5

whats the area of 8ft, 6ft and 2ft?

Answers

Answer:

96

Step-by-step explanation:

8x6=48

48x2=96

Animal Kingdom - You won the lottery and decided to buy all of the cats and dogs at a shelter and let them all roam free on a farm. You forgot to ask exactly how many dogs and how many cats they were giving you, but you know that there are 152 animals altogether and there are 3 times as many dogs as there are cats. Write an equation to find out the number of dogs and cats and then solve it.​

Answers

Answer:

3x=152

Step-by-step explanation:

You know that there are 152 animals intotal so that goes at the end. if we say that the dogs are x because we dont know how many there are, then there are 3 times more cats then there are x.

Write an algebraic expression or equation to represent each word phrase.
The quotient of n and 12 is 20

Answers

Answer:

n/12 = 20

Step-by-step explanation:

quotient is the answer of dividing

so

n/12 = 20

help help help PLS TY

Answers

I think it's 4, 2, 3, 1

40 is what percent of 50?
%
5
%
4
90%
80%

Answers

Answer:

80%

Step-by-step explanation:

Answer:

80%

Step-by-step explanation:

50 times .8 aka 80 percent is 40

Jack wants to lose some weight and is highly motivated to follow the orders of his doctor. His doctor has given him a goal that he is to decrease his weight by 2 3/8 pounds per week. If Jack weighs 250 pounds
when he starts the diet, how much will he weigh after five weeks on the
diet?

Answers

Answer:

The answer would be 11 7/8 pounds

Step-by-step explanation:

2 3/8 times 5 equals 11 7/8.

Hope I helped!! :)

Sorry if it's wrong! :(

Pls mark brainlist.

g(x) = 3(x - 8) Find g(-2)

Answers

Answer:

Step-by-step explanation:

if g(x)=3x-8

replace x with -2

g(-2)=3(-2)-8=-6-8=-14

6 is 16% of what number?​

Answers

Answer:

37.5

Step-by-step explanation:

Answer:

6 is 16% of the number 37.5

Step-by-step explanation:

We have, 16% × x = 6

or, 16/100 × x = 6

Multiplying both sides by 100 and dividing both sides by 16,

we have x = 6 × 100/16

x = 37.5

What is the calculated interest for $650, with a 3% simple annual interest rate, after 4 years?

Answers

Answer:

650/100 X 3 = 19.5

19.50 X 4 = 78

$78

Hi please help. i’ve been stuck on this for 5 minutes

Answers

It’s 104. You have to add the sides and with that sum. You multiply by 4.

What is the area of a rectangle with side lengths of 1/2 and 2/3

Answers

Answer:

2/6 square units

Step-by-step explanation:

What is the area of a rectangle with side lengths of 1/2 and 2/3

Step one:

given data

L= 1/2 units

W=2/3 units

Step two:

Area= L*W

substitute

Area= 1/2*2/3

Area=2/6 square units

help me fast for brainiest!

Answers


I hope this helpss!!!

A plumber charges $65 to make a house call plus an additional charge of $42 per hour for labor. Write an equation to represent the total cost (y) for any number of hours (x).

Answers

your query :

A plumber charges $65 to make a house call plus an additional charge of $42 per hour for labor. Write an equation to represent the total cost (y) for any number of hours (x).

Answer:

the required equation to represent the total cost with respect to every hour will be

=》y = 42x + 65

Step-by-step explanation:

total cost (y) = charge to make a house call + additional charge for every our

so, total additional charge for x hours

= 42 × x = 42x

hence y = 65 + 42x ( where 65 is charge to make a house call , y is total cost and 42x is additional charge for x hours )

i hope u got it

have a great day ^_^

what is the simplified expression for this ?

Answers

Answer:

I think it is 14.1421356237. I needed you can round it down to 14.14.

-7/10 or -0.81 which is greater

Answers

Answer:

-0.81 one is greater

Step-by-step explanation:

-7/10 > -0.81 because the lower the number the closer it is to 0 and zero is greater than both values.

How many solutions will this system of equations have??
Please explain your thinking

Answers

7 because I’m smart and I have the expect same problem

Can someone find the slopes of these two please?

Answers

Answer:

you put the points into the slope formula and solve : (y2-y1)/(x2-x1)

1. (4 -1) / (-2 -3)

3 / -5

2. (-1 -(-2)) / (5 - 0)

(-1 +2) / 5

1/ 5

Step-by-step explanation:

i hope this helped :)

Answer:

the first slope is 3/-5

the second one is 3/5

Step-by-step explanation:

Can someone help me with this? I just need help understanding it.​

Answers

What do you need help with !?! I don’t get it you just write the question no picture

Select all equations that have graphs with the same y-intercept.

y = 3x - 8
y = 3x - 9
y = 3x + 8
y = 5x - 8
y = 2x - 8
y = (1/3)x - 8

Answers

y=3x-8
y=5x-8
y=2x-8
y=1/3x-8
the y intercept is the b in y=mx+b and all of these have -8 as the y int

The equations that have graphs with the same y-intercept are:

y = 3x - 8y = 5x - 8y = 2x - 8y = (1/3)x - 8

To determine which equations have graphs with the same y-intercept, we need to look for equations that have the same constant term when written in the form y = mx + b, where m represents the slope and b represents the y-intercept.

The y-intercept is the value of y when x is equal to 0. In other words, it is the point where the graph intersects the y-axis.

Let's compare the equations and their constant terms:

y = 3x - 8 (Constant term: -8)

y = 3x - 9 (Constant term: -9)

y = 3x + 8 (Constant term: 8)

y = 5x - 8 (Constant term: -8)

y = 2x - 8 (Constant term: -8)

y = (1/3)x - 8 (Constant term: -8)

From the comparison, we can see that the equations y = 3x - 8, y = 5x - 8, y = 2x - 8, and y = (1/3)x - 8 all have the same constant term of -8. This means that their graphs will have the same y-intercept, which is -8.

Therefore, the equations that have graphs with the same y-intercept are:

y = 3x - 8

y = 5x - 8

y = 2x - 8

y = (1/3)x - 8

Learn more about intercept here:

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On a map of the United States, the distance between New York City and Nashville, TN is 2.5 inches. In real life, the distance is 880 miles. What is the scale on the map? (miles/inch) *

Answers

Answer: Rounded: 350 miles/inch

Exactly 352 miles per inch.

Step-by-step explanation: Divide the miles by the inches to find miles per inch.

880/2.5 = 352.

It would make sense to round that to say the scale is 350 miles per inch.

One inch represents 350 miles

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