Helen plans on reading 2 books this year. If there are 7 books on her reading list to choose from, how many different book
choice combinations are possible?
Provide your answer below:

Answers

Answer 1

Answer:

14

Step-by-step explanation:


Related Questions

Help, will give brainliest if correct!!!

A cheetah runs at an average speed of 50 mph between two jungles that are 150 miles apart. An antelope runs at an average speed of 30 mph, a lion runs at an average speed of 25 mph, and an elephant runs at an average speed of 15 mph.
How long does it take each animal to run to the second jungle?

Answers

Answer:

cheetah, 3 hours antelope, 5 lion, 6 elephant, 10

Step-by-step explanation:

The time taken by each animal to reach another jungle are:

Cheetah = 3 hours

Antelope = 5 hours

Lion = 6 hours

Elephant = 10 hours

What is speed?

Speed is a scalar quantity that refers to how fast an object is moving.

Given are the speeds of different animals,

Cheetah = 50 mph

Antelope = 30 mph

Lion = 25 mph

Elephant = 15 mph

Speed = distance/time.

Time = distance/speed

Distance = 150 miles

Time taken by each :

Cheetah = 150/50 = 3 hours

Antelope = 150/30 = 5 hours

Lion = 150/25 = 6 hours

Elephant = 150/15 = 10 hours

Hence, The time taken by each animal to reach another jungle are:

Cheetah = 3 hours

Antelope = 5 hours

Lion = 6 hours

Elephant = 10 hours

For more references on speed, click;

https://brainly.com/question/28224010

#SPJ2

A car sold from a dealership is 25,700 if the sales person receives 1.5% commission on the price of the car how much commission is made on average per car sold

Answers

Answer:

385.50

Step-by-step explanation:

Please help will put brainliest

Answers

Answer:

7x - 8y = -23

Slope = 1.750/2.000 = 0.875

x - intercept = -23/7 = 3.28571

y - intercept = 23/8 = 2.87500

7x - 7y = -14

Slope = 1

x - intercept = -2/1 = -2.00000

y - intercept = 2/1 = 2.00000


A taxi ride costs $4, plus an additional $3 per mile (X). You paid the taxi driver $16 after riding in the taxi for x
number of miles. How many miles did you ride in the taxi?
Help please

Answers

Answer:

4 miles

Step-by-step explanation:

Answer:

4 miles

Step-by-step explanation:

4 + 3x = 16      16 - 4 = 12 / 3 = 4

Mrs. Daiz has 9 eggs. She cooks 5 how mich left

Answers

Answer:

You have for uncooked eggs left.

Step-by-step explanation:

9 (total amount of eggs) - 5 (eggs left after she cooks) = 4 eggs cooked.

At a catered wedding, there are 2 options for the first course, 6 options for the main course, and 3 options for
dinner. How many meals are possible?
A.11
B.64
C.18
D.36

Answers

Answer:

A. 11

1 course = 1 meal

Step-by-step explanation:

Given the following two equations determine if they are parallel, perpendicular, or neither.
3x + 6y = 30
4y + 2x = 9

Please show work!

Answers

Answer:

Parallel

Step-by-step explanation:

What you want to do first is to put both equations into the slope intercept form: y=mx+b.

In the first equation, you move the [tex]3x[/tex] to the right side of the equal sign by subtracting on both sides:

[tex]6y = -3x + 30[/tex]

Then you want to divide both sides by 6 to isolate y:

[tex]y = -\frac{1}{2}x + 5[/tex]

Next for the second equation, you do similar steps. You subtract [tex]2x[/tex] from both sides:

[tex]4y=-2x+9[/tex]

Then you want to divide both sides by '4' to isolate y:

[tex]y= -\frac{1}{2}x+\frac{9}{4}[/tex]

Now to check if the two equations are parallel, perpendicular, or neither, you compare the slopes 'm' which is the coefficient next 'x'. If two equations have the same slope, then they are parallel. If the slopes multiplied equal -1, then they are perpendicular. If the slopes are not the same or if the product of the slopes is not -1, then it is neither.

In the case of this problem, the slopes are the same, so the equations are parallel:

[tex]-\frac{1}{2} = -\frac{1}{2}[/tex]

If the Constant of Proportionality between X and Y is 12, which equation represents their relationship?

Answers

Answer:

y=12x   12=k   k=constant of Proportionality

Step-by-step explanation:


Given that 8x−5y=24
Find y when x=−6
Give your answer as an improper fraction in its simplest form.​

Answers

Answer:

y = - [tex]\frac{72}{5}[/tex]

Step-by-step explanation:

Plug x = -6 into the given equation : 8(-6)−5y=24Multiply the numbers: -48 - 5y = 24Move the constant to the right-hand side and change its sign: -5y = 24 +48Add the numbers: -5y = 72Divied both sides of the equation by -5 : y = - [tex]\frac{72}{5}[/tex]

something divided by -7 that gives -4 PLEASE I NEED HEEELP

Answers

Answer:

28

Step-by-step explanation:

Just do -4 multiplied by -7 which is 28

When divided it gives you -4

Answer:

just look it up

Step-by-step explanation:

Safari, Ask what u need too, and that is it

Place the following numbers from least to greatest.



4.14, 3.24, 3.14, 4.24

Answers

3.14, 3.24, 4.14, 4.24
3.14, 3.24, 4.14, 4.24

24 cycles in 2 cycle stands = cycles per cycle stand

Answers

Answer:

there are 12

Step-by-step explanation:

24/2 = 12 that means that there are 12 cycles per stand

Answer: 12 cycles

Step-by-step explanation:

You need to make at least 360 wraps for a party. You can make 9 wraps per minute.

How long will it take you to make the number of wraps you need?
In two or more complete sentences write and solve an inequality for the situation and explain how you will solve the inequality.

Answers

Answer:

40 minutes

Step-by-step explanation:

What the person above/below me is saying, is you have to divide 360 and 9, to find x! X=40, 360/9=40! That's what they mean. I hope this helped you understand their answer!

It will take 40 minutes for me to make the 360 wraps that I need.

9x ≥ 360 ⇒ x ≥ 40

Step-by-step explanation:

I have to make at least 360 wraps for a party.

I can make 9 wraps per minute.

So, it will take minutes for me to make the 360 wraps that I need.

If I work for x minutes to make wraps, then I will be able to make 9x wraps.

So, the inequality that models the given condition is

9x ≥ 360

⇒ x ≥ 40 {Dividing both sides by 9}

Therefore, I need to work at least 40 minutes to reach my goal. (Answer)

2. Use the Pythagorean theorem to find the missing side of the following right triangles.
Round to the nearest tenth if needed.
2
B
a = 9
C
b = 12

Answers

Answer:

Pythagorean theorem which is a²+b²=c2

9²+12²=c²

225=c2

c=√225

c=15

You are given a penny on January 1, two pennies on January 2, four pennies on January 3, and eight pennies on January 4, and so on. 1.

Assuming the pattern continues, how many pennies do you get on the following dates? January 5 January 10 January 31

Answers

Answer:

january 5 :12

january 10:22

Step-by-step explanation:

Answer:

16 pennies512 pennies1073741824 pennies

Step-by-step explanation:

We can see a pattern:

Days >>   Pennies1        >>   1= 2^02        >>  2= 2^13       >>   4 = 2^24       >>   8 = 2^3...n       >>   2^(n-1)

So

January 5 fall on n = 5, therefore 2^4 = 16 penniesJanuary 10 falls on n = 10, therefore 2^9 = 512 penniesJanuary 31 falls on n = 31, therefore 2^30 = 1073741824 pennies

Can someone answer this quickly please

Answers

Answer:

3/x

Step-by-step explanation:

it just is

2 1/8 and 17/8 are reciprocal numbers. True False

Answers

Answer:

False

Step-by-step explanation:

If make 2 1/8 into an improper fraction, it will be 17/8. a reciprocal is a flip of a number, so it is false.

Write 4,275,000,000 in scientific notation

Answers

Answer:

4.275 x 10^9

Step-by-step explanation:

jus do it

Answer:

4.275x10bto the 9th power

Step-by-step explanation:

Please give me the correct answer.​

Answers

Answer:

33

Step-by-step explanation:

the tax on a purchase of $20 is 1.12. how much will tax be on a purchase of $45.50

Answers

Answer:

$ 1,593.75

Step-by-step explanation:

this is the advanced sale calculation if you wan a simple one i can write that in the comments! hope this help you! :D

helpppp it’s my friends birthday

Answers

-2(13/20)
there you go

Give answer please
Water bottles are sold in cases of 24. Select the TWO expressions that can represent the total number of water bottles in c cases
Options:
24 X c,
24 ÷ c,
24 + c,
24 - c,
24c

Answers

24c is the correct answer

Answer:

24c

Step-by-step explanation:

First off, we know what in each case there are 24 bottles. So if we have c crates and want to know the water bottles inside them, we need to multiply 24 by c resulting in 24c or 24 x c.

Which is the constant of proportionality for the relationship shown in the table?

Answers

Answer:

b

Step-by-step explanation:

The math club is having a car wash to raise funds to attend a state competition. They need to raise a minimum of $325.00. The cost of supplies for the car wash is $25.00. If they expect 40 cars on the day of the car wash, what is the amount they will have to charge each car to meet the minimum goal?

Answers

Answer:

8.75

Step-by-step explanation:

the formula to use would be:

$325 = 40x - 25

add 25 to both sides of the equation to get:

$350 = 40x

divide both sides by 40 to get:

x = 350/40 = $8.75

if they charge $8.75 per car, they will raise 40 * that for a total of $350.

they would then subtract the $25 for the cost of the supplies and they would be left with $325.

that's their minimum goal.

Answer:

8.75

Step-by-step explanation:

In the diagram below of triangle TUV, W is a midpoint of TU and X is a midpoint
of UV. IfWX = 23 – 2x, and TV = 64 – 10x, what is the measure of TV?
А.
W
T
V
Answer:
Submit Answer

Answers

Answer:

[tex] TV = 34 [/tex]

Step-by-step explanation:

WX = 23 – 2x,

TV = 64 – 10x,

First, create an equation you will use to find the value of x.

Thus:

[tex] WX = \frac{1}{2}(TV) [/tex] (midsegment theorem of a ∆)

[tex] 23 - 2x = \frac{1}{2}(64 - 10x) [/tex] (substitution)

[tex] 23 - 2x = \frac{1}{2}(64 - 10x) [/tex]

Multiply both sides by 2

[tex] (23 - 2x)*2 = \frac{1}{2}(64 - 10x)*2 [/tex]

[tex] 46 - 4x = 64 - 10x [/tex]

Collect like terms

[tex] 46 - 64= 4x - 10x [/tex]

[tex] -18= -6x [/tex]

Divide both sides by -6

[tex] 3 = x [/tex]

[tex] x = 3 [/tex]

Find TV:

[tex] TV = 64 - 10x [/tex]

Plug in the value of x

[tex] TV = 64 - 10(3) = 64 - 30 [/tex]

[tex] TV = 34 [/tex]

Answer:

the answer is 18

Step-by-step explanation: I unfortanutley got it wrong by listen to the dude that said it 34 but it's 18

(5x + 4) + (-8x - 2)

Answers

Answer:

-3x + 2

Step-by-step explanation:

(5x + 4) + (-8x - 2)

= 5x + 4 -8x - 2

combine like terms

-3x + 2

chooseeeeeeeeeeeeeeeee oneeeeeeee plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz and explain ​

Answers

Answer:

Step-by-step explanation:

Jose is right because the two angles are coresponding angles that are congruent

Which expression is equivalent to 20y - 5
A. 4(5y-1)


B. 20(y-5)


C. 5(4y-1)


D. y(20-5)

Answers

9514 1404 393

Answer:

  C.  5(4y-1)

Step-by-step explanation:

The answer choices are all factored forms. The only common factor in 20y-5 is 5, so the factored form with 5 as a factor is the appropriate one:

  5(4y -1)

There are 3,785 milliliters in 1 gallon, and there are 4 quarts in 1 gallon.
How many milliliters are in 3 gallons?
Label your answer in mL.

Answers

Answer:

11355mL

Step-by-step explanation:

It gives you how many milliliters are in one gallon. From there it gives extra information that isn't needed so you skip it and go to the question which is the amount of mL in 3 gallons. So you take the amount from the first sentence (3,785 mL) and multiply it by the amount that they ask in th equestion (3 gal) .

3785*3= 11355

Solve the equation. Type just the numeral answer. Do NOT round your solution.
n
= -1.2
-1.5
n=

Answers

Answer:

-2.7

thats the answer but i cant submit without some words lol

Answer:

n= 1.8

Step-by-step explanation:

Solve the following expression:

n/-15 = -1.2

-Multiply -1.5  on both sides:

(-1.5) n/-1.5 = -1.2(-1.5)

n=1.8

Therefore, the final answer is n = 1.8.

Other Questions
Find the slope from the points given: (18, -5), (18, 20) What are two ways in which scientists are trying to find out about the lost colony of Roanoke? I need 3 paragraphs of the puertorican tongue (in spanish) Help I do not get this because I am bad at English Please give me the correct answer. i need help please Convert 49 degrees to radians. Use 3.14 for \pi. Round to the nearest hundredth. what kinda math is this Slope intercept and all that stuff Find the value of Angle 4.Find the value of x. CAD(computer-aided design) software and is used in__________and __________that show how to construct an object. Technical drawings show in detail how the pieces of something relate to each other. Please help !! Which are pairs of vertical angles? < AOC and Find the slope of the line through the pair of points.(17,-7) and (13,-4)] The diameter of a circle is 44 whats the radius 1911 THE MATCH There never was a time when the world was without fire, but there was a time when men did not know how to kindle fire; and after they learned how to kindle one, it was a long, long time before they learned how to kindle one easily. In these days we can kindle a fire without any trouble, because we can easily get a match; but we must remember that the match is one of the most wonderful things in the world, and that it took men thousands of years to learn how to make one. Let us learn the history of this familiar little object, the match. Fire was first given to man by nature itself. When a forest is set on fire by cinders from a neighboring volcano, or when a tree is set ablaze by a thunderbolt, we may say that nature strikes a match. In the early history of the world, nature had to kindle all the fires, for man by his own effort was unable to produce a spark. The first method, then, of getting fire for use was to light sticks of wood at a flame kindled by natureby a volcano, perhaps, or by a stroke of lightning. These firebrands were carried to the home and used in kindling the fires there. The fire secured in this way was carefully guarded and was kept burning as long as possible. But the flame, however faithfully watched, would sometimes be extinguished. A sudden gust of wind or a sudden shower would put it out. Then a new firebrand would have to be secured, and this often meant a long journey and a deal of trouble. In 1827, John Walker, a druggist in a small English town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. The druggist had discovered the first friction-chemical match, the kind we use to-day. It is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. Although Walker's match did not require the bottle of acid, nevertheless it was not a good one. It could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. In a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. The match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. It would ignite when rubbed on any dry surface, and there was no longer any sputtering. This was the phosphorus match, the match with which we are so familiar. In the last paragraph, what is the main point of the section that discusses the chemicals involved in match making? To explain how matches work To explain the benefits of phosphorus To explain why early attempts failed To explain what was wrong with antimony please help me i help you i send a picture Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.Match each statement from the passage with the message it represents. Complete the answer to the question with any word that makes sense. 13. Quin es la amiga de Jos? performing in the best way with little wasted effortA hostileB vowC treacherousD efficent My dog Tucker went on a diet. He used to weigh 36 pounds. He now weighs only 24 pounds. What was the percent of decrease? (Round your answer to the nearest whole percent)