Of 28 students taking at least one subject, the number taking Math and English but not History equals the number taking Math but not History or English. No student takes English only or History only, and six students take Math and History but not English. The number taking English and History but not Math is 5 times the number taking all three subjects. If the number taking all three subjects is even and non-zero, the number taking English and Math but not History is

Answers

Answer 1

Answer:

The answer is 5 students taking English and Math but not History

Step-by-step explanation:

The total students are 28 which are divided into 5 possible groups with no students taking either English only or History only:

Taking Math only Taking English and Math but not HistoryTaking Math and History but not EnglishTaking English and History but not MathTaking triple subjects

The number of students in group 3 is 6. Hence, the total number in group 1, 2, 4 and 5 is: 28 - 6 = 22

Also, the number of students in group 4 is five times the number in group 5, therefore: group 2 + group 5 = 6 times group 5

Additionally, the number of students in group 1 equals that in group 2.

Hence, the equation is: 6 x group 5 + 2 x group 2 = 22 => group 2 = 11 - 3 x group 5 => group 2 = 5 because group 5 is an even number and non-zero, it must be 2.


Related Questions

Emily has driven 600 miles so far on her way to the beach. If her total trip will be 850 miles‚ about what percentage of the drive does she have left to complete? a) 15% b) 29% c) 40% d) 73%

Answers

Answer:

B) 29%

Step-by-step explanation:

First, we subtract 600 from 850 to get the distance she has left. 850 - 600 = 250. Next, we take 250 and divide it by 850 to get the decimal which is 0.294117647. We can round this answer to 0.29 and convert this answer to a percentage which is 29%.

Answer:

B. 29%

Step-by-step explanation:

Percentages can be found by dividing the part by the whole, then multiplying by 100.

(part/whole) * 100

We have to find the percentage of the drive she has left.

Therefore, the part is the miles she has left and the whole is the total trip.

(miles left/total trip) * 100

First, we need to find how many miles she has left. We must subtract the miles she has driven from the total trip.

total - miles driven

She has 850 total miles and has driven 600 miles.

850-600

250

She has 250 miles left.

Now we know the miles she has left.

(miles left/total trip) * 100

miles left = 250

total trip= 850

(250/850) * 100

Solve inside the parentheses first. Divide 250 by 800.

(0.29411765)*100

Multiply

29.411765

Round to the nearest whole number. The 4 in the tenth place tells us to leave the whole number as is.

29

Therefore, she has about 29% of her trip left.

Find the area of the following shape.

Answers

Answer:8

Step-by-step explanation:

Answer:

How do you figure 8?

A=1/2(L*W) triangle but what is the work?

20 – 2p>-2(p + 2) + 4p

Answers

Answer:

i just kinda need points rn

Step-by-step explanation:

Answer:

p<6

Step-by-step explanation:

Step 1: write it out: 20-2p>-2(p+2)+4p

Step 2: use distributive property: 20-2p>-2p-4+4p

Step 3: combine like terms: 20-2p>2p-4

Step 4: add 2p to both sides: 20>4p-4

Step 5: add 4 to both sides: 24>4p

Step 6: divide both sides by 4: 6>p or p<6

PLEASE HELP URGENTLY

Answers

Answer:

0.8/1 = 0.8

hope this helps you

0.8/1=0.8 I’m not sure if someone answered yet


Hurry please I really need this .

Answers

Answer:

{2,3,4,5}

Step-by-step explanation:

The given set is in set-builders notation form.

IT says that x such that x belongs to integers and it is greater than or equal to 2 and less than on equal to 5.

So, The set will be written as:

=> {2,3,4,5}

Answer:

(2, 3, 4, 5)

Step-by-step explanation:

If you substitute x with all of the numbers you should get (2, 3, 4, 5)

A bag contains 5 blue marbles, 2black marbles ,and 3 red marbles. A marine is randomly drawn from the bag The probability of not drawing a black marble is___ . The probability of drawing a red marble is____

Answers

Answer:

80%; 30%

Step-by-step explanation:

There is 5 blue marbles, 2 black marbles, and 3 red marbles. In other words, there is a total of 10 marbles.

There are only 2 black marbles and 8 marbles that are not black. Therefore, the probability of not drawing a black marble is 8/10 or 4/5 or 80%.

There are only 3 red marbles out of the 10 total marbles. Therefore, the probability of drawing a red marble is 3/10 or 30%.

The position of an object at time t is given by s(t) = -9 - 3t. Find the instantaneous velocity at t = 8 by finding the derivative. 20 POINTS

Answers

Answer:   -3

Work Shown:

s(t) = -9 - 3t

s ' (t) = -3 ... apply the derivative

The position function is linear, so the derivative is constant. The slope of any straight line is the same regardless of where you are on it, so that's why the velocity is a single fixed number. Put another way, the slope of the line is exactly the velocity (since slope = rise/run = change in distance over change in time). It doesn't matter what the value of t is, the velocity will be -3

Answer:

Step-by-step explanation:

i am doing the SAME THING

Which equation, when solved, results in a different value of x than the other three?

Answers

Answer:

-7/8(-8/7)x-3/4=20(-8/7)

Step-by-step explanation:

-7/8(-8/7)x-3/4=20(-8/7)

x-3/4=-21 1/7

x=-21 4/28-21/28

x= 20 3/28

The other three are actually the same problem, and they all equal -23.7

Answer:

-7/8(-8/7)x-3/4=20(-8/7)

Step-by-step explanation:

Proof Below

Got it right on test

Multiply and simplify
(x +1)3 x (x+1)4

Answers

Answer:

12x^2+24x+12

Step-by-step explanation:

(3x+3) * (4x+4)

12x^2+24x+12

Answer:

( x+1)^7

Step-by-step explanation:

(x +1)^3 * (x+1)^4

Replace x+1 with m

m^3 * m^4

The bases are the same so we can add the exponents

m^ (3+4)

m^7

Replace m with x+1

( x+1)^7

10 Points! Help is aprreciated!! :)

Answers

Answer:

A

Step-by-step explanation:

Since the the value is greater than 1, f(x),g(x), and h(x) are exponential functions.

help meee plz plz me now

Answers

Answer:

if they are proportional he will give away 20

Answer:

20 should expect to get lizard treats

Step-by-step explanation:

There are 4+10+6 treats = 20 treats

10 out of the 20 are lizard treats

10/20 = 1/2

There are 40 people

1/2 * 40 = 20

20 should expect to get lizard treats

A chess player moves a knight from the location (3, 2) to (5, 1) on a chessboard. If the bottom-left square is labeled (1, 1), the translation made is (options, 2 squares up and 1 square right, 1 square down and 2 squares left, 1 square down and 2 squares right or 2 squares down and 1 square right) If the player moves the knight from (5, 1) to (6, 3), the translation made is (options, 1 square up and 1 square right. 2 squares up and 1 square right, 4 squares up and 2 squares right or 2 squares up and 1 square left)

Answers

Answer:

1. one square down two squares right

2. two squares up one square right

Answer:

one square down two squares right

Step-by-step explanation:

.

Graph: y = |x + 2| + 1

Answers

Answer:

[tex]x = y - 3 [/tex]

[tex]x = - (y + 1) y \geqslant 1[/tex]

Hope this is correct and helpful

Step-by-step explanation:

I suppose that this is the graph

HAVE A GOOD DAY!

What is the slope of the line that passes through the points (–20, 18) and (30, 14)?

Answers

Answer:  the fraction -2/25

Explanation:

Use the slope formula. We subtract the y values together, and do the same for the x values as well. Subtract in the same order each time. Then you divide the two results. Reduce the fraction if possible.

m = (y2 - y1)/(x2 - x1)

m = (14 - 18)/(30 - (-20))

m = (14 - 18)/(30 + 20)

m = -4/50

m = -2/25

Answer:

[tex]-\frac{2}{25}[/tex]

Step-by-step explanation:

Slope is rise over run.

[tex]m=\frac{rise}{run}=\frac{y_2-y_1}{x_2-x_1}[/tex]

We are given the points (–20, 18) and (30, 14).

[tex]m=\frac{14-18}{30+20}=\frac{-4}{50}=-\frac{4}{50}=-\frac{4/2}{5/2}=\boxed{-\frac{2}{25}}[/tex]

The slope is -2/25.

Brainilest Appreciated.

NEED ANWSER ASAP! WILL GIVE BRAINLIEST! An ant needs to travel along a 20cm × 20cm cube to get from point A to point B. What is the shortest path he can take, and how long will it be (in cm)?

Answers

Answer:

any way since the sides are the same leangth

Step-by-step explanation:

Brett is making chocolate bars. He wants to make 35 bars from Monday to Friday. One cocoa pod makes ⅚ of bar. If he harvests the same number of cocoa pods each day, how many cocoa pods should he harvest each day to reach his goal of making 35 bars total from Monday to Friday?

Answers

Answer:

9

Step-by-step explanation:

one cocoa pod makes 5/6 bar

to make 35 bars, he needs

35 / (5/6) = 35 * 6/5 = 42 pods

Monday - Friday is 5 days

42/5 = 8.4

He needs more than 8 pods per day, so he must harvest 9 pods per day.

Answer:

8.4

Step-by-step explanation:

Please help i will give brainliest for correct answers!​

Answers

Answer:b

Step-by-step explanation

Find the area of the shaded region. Plz help

Answers

Answer:
20 cm^2

Explanation:
Degree of area you want to find: 80
Length of radius: 9

Equation: 80/360 times 9
80/360= .2222222...
.2222222... times 9 = 20

So the answer is 20 cm^2

What additional information must be known to prove the triangles similar by SSS? options: A) ∠F ≅ ∠Q B) No additional information is needed. C) The lengths of and D) ∠F ≅ ∠D

Answers

Answer:

Option A)     [tex]\angle F\\[/tex] congruent with  [tex]\angle Q[/tex]

Step-by-step explanation:

There is only information about two sides in each triangle, so there is still the need of a third piece of info which can come from an angle like [tex]\angle F\\[/tex] congruent with  [tex]\angle Q[/tex], which are angles opposite to one of the given sides on each triangle.

is this right? someone please help i’ll give brainliest :)

Answers

Answer:

x>-1

Step-by-step explanation:

Answer:

Your answer is incorrect.

Step-by-step explanation:

The answer that you should have gotten is;

x>-1

Right isosceles triangles are constructed on the sides of a 3−4−5 right triangle, as shown. A capital letter represents the area of each triangle. What is [tex]\frac{X+Y}{Z}[/tex]

Answers

Answer:

1

Step-by-step explanation:

because the triangles are isosceles, that means that the area of Z is 5x5x1/2, which equals 12.5

the area of X is 4.5

the area of y is 8

(8+4.5)/(12.5) = 1

Rose is making necklaces. She needs 7 sapphires and 6 rubies to make one necklace. Complete the double number line diagram to show the numbers of rubies and sapphires Rose needs to make 1 , 2 3 and 4 necklaces.

Answers

Answer:

B

Step-by-step explanation:

Sam's total expenses last month were $1840. What was his total variable cost for last
month?
Expense
Amount
Rent
$100
Groceries and drinks
$1000
$10
Insurance premiums
Loan interest payment
Clothes
$30
$200
&
Utilities
$300
Home security fee
$200​

Answers

Answer:

$1500

Step-by-step explanation:

It is given that

Rent  = $100

Groceries and drinks = $1000

Insurance premiums   = $10

Loan interest payment  =$30

Clothes  = $200

Utilities  = $300

Home security fee  = $200​

Fixed cost are costs that does not vary and variable cost are costs that vary with goods and services.

In the given problem, rent , insurance premiums, loans interest payment ad home security fee are fixed cost.

Groceries and drinks, clothes and utilities are variable cost.

So, total variable cost for last month is

[tex]\text{Total variable cost}=\$1000+\$200+\$300=\$1500[/tex]

Therefore, total variable cost for last month is $1500.

Answer:

$1500

Step-by-step explanation:

I just took the test and got it right

What is the area of this figure?
13 mi
5 mi
8 mi
6 mi
3 mi
7 mi
square miles

Answers

Answer:

86 square miles

Step-by-step explanation:

To answer this question you have to separate the shape into smaller ones. In this case, you can separate the shape into one larger rectangle on top and one smaller rectangle on bottom.

Area of large rectangle on top:

13 miles x 5 miles = 65 square miles

Area of smaller rectangle on bottom:

3 miles x 7 miles = 21 square miles

65 + 21 = 86 square miles

Answer:

The answer is 86 square miles

Step-by-step explanation:

First of all you can seperate this shape into shapes that you already know how to solve. Then the rest is easy...You can see how I solved it in more detail  by looking at the image below. I hoped it was helpful!

Given the lengths of two sides of a triangle, find the range for the length of the third side. (Range means find between which two numbers the length of the third side must fall.) Write an inequality. 34 and 12

Answers

Answer:

[tex]22 < X < 46[/tex]

Step-by-step explanation:

Given

Two sides of a triangle; 34 and 12

Required

Determine the range of the third side

Represent the third side with X

To determine the range of the third side; two of the following conditions must be satisfied'

[tex]34 + X > 12[/tex]

[tex]34 + 12 > X[/tex]

[tex]12 + X > 34[/tex]

Solving 34 + X > 12

Subtract 34 from both sides

[tex]34 - 34 + X> 12 - 34[/tex]

[tex]X > -22[/tex]

Solving 34 + 12 > X

[tex]34 + 12 > X[/tex]

[tex]46 > X[/tex]

Solving 12+ X > 34

Subtract 12 from both sides

[tex]12 - 12 + X > 34 -12[/tex]

[tex]X > 22[/tex]

Write out the results

[tex]X > -22[/tex]

[tex]46 > X[/tex]

[tex]X > 22[/tex]

The first inequality will be discarded because it accommodates negative digits;

So, we're left with

[tex]46 > X[/tex] and [tex]X > 22[/tex]

This can be rewritten as

[tex]X < 46[/tex] and [tex]22 < X[/tex]

Combine both inequalities;

[tex]22 < X < 46[/tex]

Hence, the range of the third length is [tex]22 < X < 46[/tex]

helpppp me plz i need help i need help

Answers

Answer: [tex]\frac{1}{8}[/tex]

Step-by-step explanation:

- A coin has 2 sides. Which means the probability of the coin landing on one side will be [tex]\frac{1}{2}[/tex].

- Since there are three coins, we multiply [tex]\frac{1}{2}[/tex] three times ( [tex]\frac{1}{2}[/tex]* [tex]\frac{1}{2}[/tex]* [tex]\frac{1}{2}[/tex]) to get the answer of [tex]\frac{1}{8}[/tex]

To make a specific hair dye, a hair stylist uses a ratio of 118 oz of red tone, 34 oz of gray tone, and 58 oz of brown tone. If the stylist needs to make 20 oz of dye, how much of each dye color is needed?

Answers

Answer:

The answer is, the hair stylist needs 5.9 oz of the red tone, 1.7 oz of gray tone, and 2.9 oz of brown tone

Step-by-step explanation:

It says if the stylist needs to make 20 oz of dye,how much of each dye is needed? So you need to divide 20 by 118,34,and 58.

Step 1:Highlight important words that can help answer the question

Highlight:How much,each,ratio,is needed

Step 2:Collect data(numbers) from the algebraic equation

Example:118 oz, 34 oz, 58 oz, 20 oz

Step 3:Divide 20 by each ratio of dye

118/20

34/20

58/20

Step 4:Get the quotient of each dividend

118/20=5.9

34/20=1.7

58/20=2.9

Step 5:Check your work to make sure it's correct. Note:If you check your work but it's not right try again.

20 x 5.9=118

20 x 1.7=34

20 x 2.9=58

A lot consisting of 50 bulbs is inspected by taking at random 10 bulbs and testing them. If the number of defective bulbs is at most 1, the lot is accepted; otherwise it is rejected. If there are 10 defective bulbs in the lot, what is the probability of accepting the lot?

Answers

Answer:

0.3487

Step-by-step explanation:

The probability of accepting the lot If there are 10 defective bulbs in the lot is;  0.3487

This involves binomial probability distribution which is given by the formula;

P(X = r) = ⁿ[tex]C_{r}[/tex] × [tex]p^{r}[/tex] × [tex]q^{1 - r}[/tex]

We are given;

Number of bulbs taken at random = 10

We are told that if the number of defective bulbs is at most 1, then the lot is accepted.

This means that probability of success is; p = 1/10 = 0.1

q = 1 - p

q = 1 - 0.1

q = 0.9

If there are 10 defective bulbs, then the probability of accepting the lot is;

P(X = 0) = ¹⁰[tex]C_{0}[/tex] × [tex]0.1^{0}[/tex] × [tex]0.9^{10 - 0}[/tex]

P(X = 0) = 0.3487

Read more at; https://brainly.com/question/24239758

A man has 3 different suits, 4 different shirts and 5 different pairs of shoes. In how many different ways can this man wear a suit, a shirt and a pair of shoes? 35 12 60 17

Answers

Answer:

60 ways

Step-by-step explanation:

Multiply the number of suits, shirts and shoes to find the number of ways

3 * 4 * 5

60 ways

Answer:

60

Step-by-step explanation:

(4 x 3) 5

Determine if the two triangles shown are similar. If so, write the similarity statement. options: A) ΔUVW ∼ ΔFGH B) The triangles are not similar. C) ΔWUV ∼ ΔFGH D) Impossible to determine.

Answers

Answer:

B (from down below) They are similar but your q does not match up with the picture

Step-by-step explanation:

to determine if two triangles are similar you have to make sure the ratios are the same. So 10 / 8 = 1.25, so all sides should have this ratio. 15 / 12 is also 1.25 so you know to sides are similar and also the triangles ARE SIMILAR. So The statement would be KMN is similar to KLP.

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