A survey found that 68% of book buyers are 40 years old or older. If two book buyers are selected at random, what is the probability that both are 40 years old or older?​

Answers

Answer 1

Answer:

15%

Step-by-step explanation:


Related Questions

y=6x+4
y=-3-5
how would you find the x and y values?​

Answers

Step-by-step explanation:

Substitution

substitute -3-5 into y

it becomes -3-5=6x+4

solve the equation to find the answer for X

then substitute the value of X you found again into the equation to find Y

Write any two irrational numbers between 0.7575496 and 0.784218972.​

Answers

Answer:

2 rational numbers are:

0.766766676666766666.....

0.766766676666766666.....0.77896543567543120.....

In a bag in a sports store room, there are
four times as many AFL balls as Rugby
balls and half as many AFL balls as
soccer balls. The number of balls
altogether is 52.
How many AFL balls are in the store room?

Please stop putting links and stuff as the answer.

Answers

30 is the answer hope rthis helps

Mathhhhhhhhhhhhhhhhhhhhhh

Answers

Answer:

0, 1

1, 4

2, 7

3, 10

4, 13

5, 16

6, 19

7, 22

Step-by-step explanation:

hope this helps!

Help will give crown I don’t not get this

Answers

Answer:

4 - 0.6 (Repeating) x = 0.75

Step-by-step explanation:

You divide the fractions by each other ex. 2 divided by 3

Answer:

[tex] 48 - 8x = 9[/tex]

Step-by-step explanation:

Multiply both sides by LCM. which is 12.

[tex]12(4 - \frac{2}{3} x) = \frac{3}{4} \times 12[/tex]

[tex]48 - 8x = 9[/tex]

Helppp do any understand rhis ?

Answers

110+45= 155
180-155=25
x=25

Answer:

x= 25 degrees

Step-by-step explanation:

A triangle has a total of 180 degrees.

110 degrees + 45 degrees = 155 degrees

180 degrees - 155 degrees = 25 degrees

Un turista pagó un total de 180 dólares en un hotel. La cuenta incluye el costo de tres noches de hospedaje y 75 dólares de alimentación.
El siguiente procedimiento permite determinar cuántos dólares pagó el turista, por cada noche de hospedaje. 3X+ 75 = 180
3X +75 -75 = 180 – 75
3X = 105
¿Cuál de los siguientes pasos completa correctamente el procedimiento?Single choice.
(10 Points)

3X – 3 = 105 – 3

3X + 3 = 105 + 3

3.(3X) = (3).105

3X/3 = 105/3

Answers

i don’t understand the language so i can’t help sorry

Simplify the expression:
2(2 + 4k)

Answers

12k is your answer
Brainliest would be nice
Simplify the expression
2(2+4k)
(4+8k) = 12k
2(2+4k) = 12k

Manuel has $50 in his bank account. Starting this week, he will deposit $30 into the
account each week. If Manuel does not take any money out of his account, how many
weeks will it take for the total amount of money in his account to reach $320?

Answers

Answer:

9 weeks

Step-by-step explanation:

50+ (30x9)=320

8 weeks because $50+$30 is $80. $80-$320 is $240.split $240 into 8 separate payments of $30

Please help me with this question

Answers

Answer:

The cost per ounce is $0.23

Step-by-step explanation:

Set up fraction:

ounce/cost

15.4/3.59 = 1/x

cross multiply

15.4x=3.59

x=3.59/15.4

x=0.233116883117

x=$0.23

The cost per ounce is $0.23

Answer:

$0.23

Step-by-step explanation:

[tex]\frac{15.4}{3.59} =.23.........[/tex]

$0.23

The small pizza is 8 inch what the circumference plz help

Answers

25.12 I think.


Dmdkskskxkakskzmmxkcodirigiititjwmamxksoslalskfkcmdlwoe

Can someone please help me ⚠️

Answers

G = - h/3 + 11/3
H = 11 - 3g
I hope this helps

1. Determine whether each expression is equivalent to (4x)2/3. Select Yes or No for each expression.

Answers

here it is in bio they wont let me type it

*** 7. Sam and Sue have only nickels and
dimes. Sue has 35€. Sam has the same number of
dimes as Sue has nickels, and he has half as many
nickels as Sue has dimes. How many nickels does
Sue have?

Answers

Answer:

there no photo so I cant answer without seeing it

The number of carbon atoms in a fossil is given by the function [tex]y = 5100(0.95)^{x}[/tex], where x represents the number of years since being discovered. What is the percent of change per year? Explain how you arrived at your answer.

Answers

Answer:

[tex]\%x=5\%[/tex]

Step-by-step explanation:

From the question we are told that:

Carbon atoms in fossil function

[tex]y=5100(0.95)^x[/tex]

 

Generally the equation a 2 year change is mathematically given by

For[tex]x=1[/tex]

[tex]y_1=5100(0.95)^1\\y_1=4845[/tex]

For [tex]x=2[/tex]

[tex]y_2=5100(0.95)^2\\y_2=4602.75[/tex]

Generally the equation percentage year changes [tex]\%x[/tex] is mathematically given by

[tex]\%x=\frac{y_1-y_2}{y_1} *100[/tex]

[tex]\%x=\frac{4845-4602.75}{4845} *100[/tex]

[tex]\%x=5\%[/tex]

Therefore  the percent of change per year is

[tex]\%x=5\%[/tex]

John saved up enough money to buy a $20 can of shoe shine after paying for the $150 pair of Nikes. How much money did he save in all?

Answers

Answer:

170$

Step-by-step explanation:

150+20=170

Answer:

Step-by-step explanation:

170

Find the area of the shaded region

Answers

Answer:

128 centimeter

Step-by-step explanation:

sana makatulong

-8x^3 - x^4 + 1/9 + x

Answers

PLEASE GIVE ME BRAINIEST IF I HELPED YOU!!! THANKS!! HAVE A GOOD DAY/NIGHT!!!

also......

X=5

PLEASE HELP! :(

Suppose that c varies directly with n, and n=8 when c=13. Find n when c=4.

Answers

as c and n directly vary it can be said that

[tex]\frac{8}{13} = \frac{n}{4}[/tex]

now we just solve for n

[tex]\frac{8}{13}=\frac{n}{c} \\13n=32\\n=2.46[/tex]

find the value of x
2x−3=5

Answers

Answer:

x=4

Step-by-step explanation:

5+3 =8

8/2 = 4

factor 4 in...

(2x4)-3=8

Answer:

X=4

Step-by-step explanation:

Is (2, 4) a solution to this system of inequalities?

y < 8x + 8
y ≥ x + 1

Answers

Answer:

yes

Step-by-step explanation:

4<8*2+8

4<16+8

4<24

4 ≥2+1

4 ≥3

Answer for brainliest no files

Answers

Answer:

D

Step-by-step explanation:

because its the only one that get the answer 3 2/3 which is the amount shown on the line.

HELP GEOMETRY PLEASE !!!!

Answers

Answer:

∅ = 37°

Step-by-step explanation:

cos ∅ = adj/hyp = 4/5 = 0.8

∅ = 37°

What is the volume of this pyramid?

Answers

Answer:

The volume would be 36

Step-by-step explanation:

Trust me

The two triangular prisms shown are similar. What is the volume of the larger prism? 36 m2 36 m3 144 m2 144 m3

Answers

Answer:

144 m^3

Step-by-step explanation:

Please find attached the image of the prisms

Volume of a triangular prism = area of the base x height  of the prism

Area of the base = 1/2 ( base x height)

the two prisms are similar, thus, the dimensions of the bigger rectangle can be gotten from the ratio of the base of the smaller and bigger triangle

ratio of their dimensions = 6 / 1.5 = 4

the dimensions of the bigger triangle is 4 times that of the smaller triangle

height of the base of the prism = 1.5 x 4 = 6

Height of the prism = 2 x 4 = 8

Area of the base of the prism = (1/2) x 6 x 6 = 18 m^2

Volume of the prism = 18 x 8 = 144 m^3

Answer:

D. 144 m^3

Step-by-step explanation:

Just took the Pre-Test on Edg (2020-2021)!!

Solve for x

(3x-4)/14=9/10

Answers

Answer:

x=5.53333333333333333333333333333333333333333

Step-by-step explanation:

cross multiply and solve:

30x-40=126

30x=166

x=5.533333333333333333

Abbie is 5 years older than twice her sister’s age. Abbie is 25 years old. Which
equation can be used to find her sister’s age?

Answers

(25-5)/2=10
5 years older than twice her sisters age so subtract 5 from 25

Please help me :( on this

Answers

Answer:

A. point F (3,5)   B. 5 units   C. 10 units

Step-by-step explanation:

!!!!help asap brainliest reward!!!!!
Compare and contrast pyramids and cones.

Be sure to use mathematical terms to describe parts of the solids.

a. In what ways are they alike?

b. In what ways are they different?

Choose either pyramids or cones, and explain how the formula for their volume can be described using other solids.

Answers

Answer:

Similarities: both have a base which extends into a single vertex.

Differences: a cone only has 1 edge and a pyramid has a minimum of 6 (for a triangular pyramid).

the base of a pyramid is a polygon - the base of a cone is a curve

(a mathematical cone has no edges at all it is a continuous sheet - or two sheets if you consider the vertex as dividing the surface into two sheets).

Step-by-step explanation:

brainliest?

The key difference between Pyramids and cones are:
A pyramid is basically a code that has a base in the form of a polygon.

What are the similarities between Pyramids and Cones?

Pyramids and cones are alike in the following ways:

Their lateral surfaces converge at a vertex;If they are of the same size, then their volume will be the same as wellA pyramid will eventually turn into a cone if the number of sides of its base is increased infinitely.

Because a cone can be made from a right angle triangle, their formulas are also alike in some ways. Notice that both formulas are related to the height of the object.

The formula for the area of a right angle triangle is:

A =   hb/2

The area of a cone is given as:

A = [tex]\pi[/tex] r (r + [tex]\sqrt{(h²+r²)}[/tex]

Learn more about Pyramids and cones at:
https://brainly.com/question/3812042

Which is the greatest measure of the given data? 4, 8, 4, 7, 5, 4, 9, 146, 6, 4, 13, 8, 11, 6, 6, 5 *

1.Mean
2.Central Tendency
3.Median
4.Mode

Answers

Answer:

Don't copy that link it will hack you.

Step-by-step explanation:

But the answer is 3. Median the median is 146.

Mode is 142

Mean is 146

The answer is median
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