In order to be allowed to go on a field trip to the zoo, 80% of the students in Mrs. Henry's class must pass a pop quiz. If there are 30 students in the class, how many students must pass the quiz?

Answers

Answer 1

Answer:

X = 24

Step-by-step explanation:

Answer 2

Answer:

the answer is 24

Step-by-step explanation:


Related Questions

A single die is rolled twice. Find the probability of rolling an
Odd number the first time and a number greater than 4 the second time.

Answers

Answer: 1/6

Step-by-step explanation:

A die has 6 numbers which are 1, 2, 3, 4, 5 and 6.

Odd numbers in a die = 1, 3 and 6

Numbers greater than 4 = 5 and 6

Probability of rolling an odd number = 3/6 = 1/2

Probability of rolling a number greater than 4 = 2/6 = 1/3

We then multiply both values gotten. This will be:

= 1/2 × 1/3

= 1/6

Therefore, the probability of rolling an odd number the first time and a number greater than 4 the second time is 1/6.

The probability of rolling an  odd number the first time and a number greater than 4 the second time is 1/6

The sample space of a single die is

[tex]\mathbf{S = \{1,2,3,4,5,6\}}[/tex]

So, the total sample is 6

The odd numbers are

[tex]\mathbf{Odd = \{1,3,5\}}[/tex] --- 3 odd numbers.

So, the probability of selecting an odd number is:

[tex]\mathbf{P(Odd) = \frac 36}[/tex]

Simplify

[tex]\mathbf{P(Odd) = \frac 12}[/tex]

The numbers greater than 4 are

[tex]\mathbf{Greater = \{5,6\}}[/tex] --- 2 numbers greater than 4.

So, the probability of selecting a number greater than 4 is:

[tex]\mathbf{P(Greater) = \frac 26}[/tex]

Simplify

[tex]\mathbf{P(Greater) = \frac 13}[/tex]

The probability of rolling an  odd number the first time and a number greater than 4 the second time is calculated as follows:

[tex]\mathbf{P = P(Odd) \times P(Greater)}[/tex]

So, we have:

[tex]\mathbf{P = \frac 12 \times \frac 13}[/tex]

[tex]\mathbf{P = \frac 16}[/tex]

Hence, the probability is 1/6

Read more about probabilities at:

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4 A baby's t-shirt requires 5 yards of fabric. How many t-shirts can be made from 48 yards?​

Answers

Answer:

9 t-shirts

Step-by-step explanation:

divide 5 by 48 you will get 9.3 but that is not what it is asking it how many t-shirts can they total

hellppp I'm slowee don't know anything​

Answers

Answer:     B)  X=40

cuz i just know

Sean has some candy bars that he wants to give away.He is going to give each person 1/8 of a bar,and he has 2 3/4 bars to give away.

Answers

Answer:

22 people

Step-by-step explanation:

Answer:

22

Step-by-step explanation:

HELP PLEASE ILL GIVE U 50 POINTS​

Answers

Answer:

6x^2+2x

Step-by-step explanation:

Answer:

area of rectangle=2x×(3x+1)=6x²+2x

ITS URGENT ILL GET GROUNDED IF I DONT GET THIS DONE PLEASE HELP » Avery states that the graph of g is the same as the graph of f with every
point shifted vertically. Cindy states that the graph of g is the same as the
graph of f with every point shifted horizontally.
f(x)=2x+1
g(x)=2x+3
Give an argument to support Avery’s answer
Give an argument to support Cindy’s statement

Answers

Answer:

Avery and Cindy are right

Step-by-step explanation:

Avery is correct because adding 2 to the graph of a function will shift it upward, while subtracting will shift it downward. Cindy is also correct because the point on the x axis also changes, would mean that every point also changes horizontally.

Alfonso makes eight dollars per hour working at a movie theater and $12 per hour working at a restaurant next week a council is scheduled to work six hours at the movie theater which of the following inequalities represent the amount of hours that Alfonso needs to work at the restaurant next week to earn at least $144 between those two jobs

Answers

Answer:

Alfonso will need to work 8 hours. What i did was multiply 8 by 6 which is 48 then subtracted 48 by 144 and got 96 then you divide that by 12 which is 8, and that is how many hours he will have to work.

Step-by-step explanation:

give me the big brain

A metal plate measuring 32cm by 12cm is cut into
small squares of side length 4cm. How many squares will
be cut?​

Answers

Answer:

the answer is 24 squares will ve cut

Answer:

24

Step-by-step explanation:

32/4 = 8 and 12/4 = 3 --> these are how many square side lengths fit onto each side

then you just multiply them, 8*3=24, to get how many squares there are. i might be reading the problem wrong though.

The graph of y=-3x+4 is

Answers

Answer:

D

Step-by-step explanation:

This is an equation of a line and it shows all the solutions for any x-value.

Answer:

B

Step-by-step explanation:

made the most sense because it's only going to be a point

Write a quadratic equation whose factors are 4+3i and 4-3i.

Answers

Answer:

[tex]y=x^2-8x+25[/tex]

Step-by-step explanation:

To answer this question, we will work backwards.

We know that a factor is 4+3i. This means that:

[tex](x-(4+3i))=0[/tex]

Hence, we will eliminate the imaginary and convert this into standard form.

First, distribute the negative:

[tex]x-4-3i=0[/tex]

Add 3i to both sides:

[tex]x-4=3i[/tex]

Square both sides:

[tex](x-4)^2=(3i)^2[/tex]

Expand:

[tex]x^2-8x+16=9(-1)=-9[/tex]

Add 9 to both sides:

[tex]x^2-8x+25=0[/tex]

Hence, our quadratic equation is:

[tex]y=x^2-8x+25[/tex]

Notes:

We will get the same equation if we use (4-3i). This is because we square the (3i) regardless of its sign, making it positive.

If there are 15 boys and 18 girls in seventh grade. Find the ratio of boys to girls -- and simplify it.

Answers

Ratio of boys to the girls

= No of boys ÷ No of girls

=15÷18

=5:6

How can you tell if it’s linear?also say if it’s yes or no

Answers

Answer:

A is yes, but the rest is no

Step-by-step explanation:

You can tell if it’s linear if when the points are plotted, the x and y values create a straight line up or down.

What is the image of (2,3)(2,3) after a reflection over the line y=-xy=−x?

Answers

Answer:

After the reflection over the line  y = -x, the image of the point is: (-3,-2)

Step-by-step explanation:

When a given point is reflected over a line the point only changes place but the distance between the point and the line remains same.

Let (x,y) be a point on the plane

and

y = -x be a line on the plane

When a point is reflected over a line y = -x , the coordinates of the point are exchanged which means x becomes y and y becomes x and both are negated

So (x,y) will become (-y,-x)

Given point is:

(2,3)

After the reflection over the line  y = -x, the image of the point is: (-3,-2)

Juan’s business had sales in August of $3,256.00. In the same month, his expenses were $4,000.00.

Juan’s profit for the month is ?

Answers

$-744 Becuase of the debt

The negative sign represents the loss. Then the loss of Juan's will be $744.

What is a profit?

A monetary profit, particularly the distinction between the amount gained and the actual cost of purchasing, running, or creating anything.

The profit is given as,

Profit = Selling price - Cost price

Juan’s business had sales in August of $3,256.00. In the same month, his expenses were $4,000.00.

The profit is calculated as,

Profit = $3,256 - $4,000

Profit = - $744

The negative sign represents the loss. Then the loss of Juan's will be $744.

More about the profit is given below.

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People supporting the Federalist party wanted all of the following except:
a.
To elect representatives from the states in order to have a voice in political decisions.
b.
A local government and a national government.
c.
People to have more say and representation in government.
d.
A traditional Spanish government.


Please select the best answer from the choices provided

Answers

Answer:

I think it is D(A traditional Spanish government.)

Step-by-step explanation:

sorry if i'm wrong

Answer:

a

Step-by-step explanation:

if f(x) = 4x+3, find f-1 (x)

Answers

Answer: x=1/4y + -3/4

Step-by-step explanation:

find KL , need helppp!!! please

Answers

The answer is 4

Substitute the 4 for x in both equations and simplify you should get 26 on both lines

Im in no rush just need help

Answers

Answer:

1. Right: pointing downwards

Left: pointing upwards

2. Right: pointing upwards

Left: pointing upwards

3. Right: pointing downwards

Left: pointing upwards

4a. True

4b. True

Step-by-step explanation:

When the leading coefficient is negative the equation will either open downwards or the y-values will decrease as the x-values increase. The opposite is true for when the leading coefficient is positive. When the degree is odd one end will point downwards while the other points upwards. When the degree is even, both ends point in the same direction.

I hope this helps :)

Expand brackets 4(y+2)

Answers

Answer:

16(y+2)

Step-by-step explanation:

4(y+2)= 4y+2 i hope this helps!

ohh your a mathematical genius say every number 1-100

Answers

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99,100

Answer:

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64. 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100

Step-by-step explanation:

i need help plz i dont understand

Answers

Line 1 is parallel and slope -1.33333 or -4/3
Line 2 is parallel and slope 0.75 or 6/8
Line 3 is parallel and slope 0.75 or -3/-4 i got the answers on Omni calculator

A pair of sunglasses cost $26 during the summer sale. If
there is a 7% tax, and Madison pays for the glasses with
$30, how much change should she receive

Answers

Answer:2.18$

Step-by-step explanation: 26 + 7% tax is 27.82 so 30 - 27.82 = 2.18$

240n ( m*2 + 8m + 16 ) / 24 ( m+4) plz help......with explanation

Answers

Answer:

20n(5m+8)(m+4)

Step-by-step explanation:

240n×

​24

​2m+8m+16

​​ (m+4)

240n×

​24

​2(m+4m+8)

​​ (m+4)

240n×

​24

​2(5m+8)

​​ (m+4)

20n(5m+8)(m+4)

3. What problems would you encounter if the ladder were too short or too long? (1 point)

Answers

Answer and explanation:

If the ladder was too short you wouldn’t be able to get to the place you need the ladder for. If the ladder was too long you have a high chance of falling and being too high to reach where you’re trying to go. Hope this helps :p

The ladder were too short or too long  is p

If the ladder was too short you wouldn’t be able to get to the place you need the ladder for.

What is the right angle triangle?

A right triangle or right-angled triangle, or more formally an orthogonal triangle, formerly called a rectangle triangle, is a triangle in which one angle is a right angle or two sides are perpendicular.

If the ladder was too long you have a high chance of falling and being too high to reach where you’re trying to go.

Therefore the answer is :p

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If you know trig please help! Will give brainliest!

Answers

sin a equals 24/25.
cot a equals 7/24.
Use the Pythagorean Theorem to find the sides of the triangle, then use trigonometric identities.

67,132 divided by 7= ?
Round your answer to the nearest tenth.

Answers

Answer:

DONE!

Step-by-step explanation:

67132/7 = 9590.28571429

Rounded to the nearest tenth: 9590.3

Answer:

9590.3

Step-by-step explanation:

finally got to answer lol

y = 7x+9
2y+2x=-18

what the slove this system of equations

Answers

Answer:

(x,y) = (0,9)

Step-by-step explanation:

miss watson runs a disatnce of 200 metres in 25 seconds.
work out the average speed of miss watson in metres per second

Answers

Answer:

Step-by-step explanation:

ANSWER:

average = total distance / time

average = 200/25 = 8 m /s

The fastest pizza box folder can assemble 8 pizza boxes in 21 seconds. At this rate, how long would it take to assemble 20 pizza boxes?​

Answers

Answer:

52.5

Step-by-step explanation:

I don't trust myself but that's what I belive

The time taken is 52.5 seconds to assemble 20 pizza boxes if the fastest pizza box folder can assemble 8 pizza boxes in 21 seconds.

What is a fraction?

Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.

It is given that:

The fastest pizza box folder can assemble 8 pizza boxes in 21 seconds.

The rate of assemble = 21/8 seconds per pizza

The time is taken to assemble 20 pizza boxes:

= (21/8)x20

= 420/8

= 52.5 seconds

Thus, the time taken is 52.5 seconds to assemble 20 pizza boxes if the fastest pizza box folder can assemble 8 pizza boxes in 21 seconds.

Learn more about the fraction here:

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Solve : 4(4p+6)=16 find the value of p

Answers

Answer:

p=-1/2

Step-by-step explanation:

4(4p+6)=16

4p+6=4

4p=4-6

4p=-2

P=-2/4

p=-1/2

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