# In class of 40 students report that english is their favorite class 40 percent of the students report that keyboard is there favorite class show the work

QUESTION POSTED AT 03/12/2019 - 12:36 PM

QUESTION POSTED AT 03/12/2019 - 12:36 PM

If 40% of students prefer keyboarding, 40/100*40=16 students like it best. If the remaining students prefer English, then 40-16=24 students like English best. Since 24 is more than 16, most students prefer English.

You want to start by putting 40 over 100 like a fraction and then you would take off the last zero in the hundred and the zero on forty and then that would give you 4/10 and then from there you would take 2 and divide too and bottom and that would give you 2/5 which will be your answer

ANSWERED AT 24/01/2020 - 11:57 PM

QUESTION POSTED AT 24/01/2020 - 11:57 PM

Rocco and Guilia can paint and finish together in 3 hours while Rocco alone can do it alone in 7 hours. Guilia at the rate of 1/r can finish the job expressed in the following equation. 1/3= 1/7+1/r. Getting r, r is equal to 5.25 hrs. Hence, Guilia can do painitng alone in 5.25 hrs.

ANSWERED AT 24/01/2020 - 10:54 PM

QUESTION POSTED AT 24/01/2020 - 10:54 PM

100 people

hope this helps!!!

hope this helps!!!

ANSWERED AT 24/01/2020 - 10:53 PM

QUESTION POSTED AT 24/01/2020 - 10:53 PM

B- 1/2 the books are science books. You have to add the two fractions and subtract that from one.

ANSWERED AT 24/01/2020 - 10:53 PM

QUESTION POSTED AT 24/01/2020 - 10:53 PM

The main contours of English colonization in the seventeenth century was that English colonization was funded by proprietary provinces operating with land grants, or charters, from the English monarchy.

ANSWERED AT 24/01/2020 - 10:53 PM

QUESTION POSTED AT 24/01/2020 - 10:53 PM

40% off of 45$ would leave you with 27$

ANSWERED AT 24/01/2020 - 10:52 PM

QUESTION POSTED AT 24/01/2020 - 10:52 PM

The students' profit from each shirt=$10.99-$3.99=$7.00.

To break even, they need to sell $280/$7=40 shirts.

The correct answer is C

To break even, they need to sell $280/$7=40 shirts.

The correct answer is C

ANSWERED AT 24/01/2020 - 10:50 PM

QUESTION POSTED AT 24/01/2020 - 10:50 PM

To quickly calculate this problem, we multiply the square root of two to 19 inches and check if the product is equal to 20.62 inches. Square root of two comes from the pythagorean theorem assuming the angle of the corners is 90 degrees. In this case, the answer is 26.87 inches which is greater than 20.62 inches. This means the shape of the room is not a square.

ANSWERED AT 24/01/2020 - 10:49 PM

QUESTION POSTED AT 24/01/2020 - 10:49 PM

Relative frequency is the number of successes out of the total number of trials.

In this case, 42 successes out of 70 means 60%.

In this case, 42 successes out of 70 means 60%.

ANSWERED AT 24/01/2020 - 10:47 PM

QUESTION POSTED AT 24/01/2020 - 10:47 PM

First step: write the equation for the volume of a pyramid V=(LWH)/3

Second: provide the variables V=(700*700*471)/3

Third: Solve V=7.69 * 10^7 or 76,900,000 feet cubed

Second: provide the variables V=(700*700*471)/3

Third: Solve V=7.69 * 10^7 or 76,900,000 feet cubed

ANSWERED AT 24/01/2020 - 10:00 PM

QUESTION POSTED AT 24/01/2020 - 10:00 PM

**Answer: Tina sample may not be valid because her sample does not represent the population of her state because it is just her neighborhood. Another reason it may not be valid is because her neighbors like to go boating on the weekends. **

**Hope this helps!!!**

ANSWERED AT 24/01/2020 - 09:56 PM

QUESTION POSTED AT 24/01/2020 - 09:56 PM

The correct answer is A I believe.

ANSWERED AT 24/01/2020 - 06:13 PM

QUESTION POSTED AT 24/01/2020 - 06:13 PM

Step 3 he forgot to multiply 3 by 7

ANSWERED AT 24/01/2020 - 06:04 PM

QUESTION POSTED AT 24/01/2020 - 06:04 PM

Reorganize the equations;

y+ 3x =-2

2y+5x=15

-----------

Multiply equation I by two for y to have a common factor;

2y+6x=-4

2y+5x=15

--------------

x=-19

Replacing value of y in equation 1;

y+(3*-19)=-2

y-57=-2

y=55

y+ 3x =-2

2y+5x=15

-----------

Multiply equation I by two for y to have a common factor;

2y+6x=-4

2y+5x=15

--------------

x=-19

Replacing value of y in equation 1;

y+(3*-19)=-2

y-57=-2

y=55

ANSWERED AT 24/01/2020 - 06:03 PM

QUESTION POSTED AT 24/01/2020 - 06:03 PM

We can let r be the number of food tickets and f be the number of food tickets.
Since Alana can spend at most $40, that means the total of price bought for r and f must be less than or equal to $40. In addition, since Alana buys at least 16 tickets, this also means that the total of r and f is 16. Mathematically, we have these inequalities:
(1) 4r + 2f ≤ 40 and
(2) r + f ≥ 16
Multiplying -2 in (2), we have
4r + 2f ≤ 40
-2r - 2f ≤ 32
Adding both inequalities,
2r ≤ 8
r ≤ 4
Since r must be less than or equal to 4.Thus the answer is A.

ANSWERED AT 24/01/2020 - 06:03 PM

QUESTION POSTED AT 24/01/2020 - 06:03 PM

4+3p≥40

He needs to have 40 or more to get to the finals so 4+3p has to be 40 or more

He needs to have 40 or more to get to the finals so 4+3p has to be 40 or more

ANSWERED AT 24/01/2020 - 06:02 PM

QUESTION POSTED AT 24/01/2020 - 06:02 PM

we know that

1) scale factor is equal to

2) The ratio of the perimeters of the triangles is equal to the ratio of the measures of the sides

3) the longest side of ∆ABC=[scale factor]*the longest side of ∆DEF

the longest side of ∆ABC=

the longest side of ∆ABC= units

**the answer part a) is**

**the longest side of ∆ABC is units**

Part b)

The ratio of the area of ∆ABC to the area of ∆DEF is equal to the scale factor squared

so

therefore

**the answer part b) is**

**The ratio of the area of ∆ABC to the area of ∆DEF is **

ANSWERED AT 24/01/2020 - 06:02 PM

QUESTION POSTED AT 24/01/2020 - 06:02 PM

Reflexive Property, the property where the quantity equals itself.

ANSWERED AT 24/01/2020 - 06:01 PM

QUESTION POSTED AT 24/01/2020 - 06:01 PM

The probability of success by the 13th event is:

** 2.1%**

We know by geometric distribution the probability of a sucess at the kth experiment is given by:

where p is the probability of the success.

Here we have: p=0.03

and 1-p=0.97

and k=13

( since we are asked to find the probability by 13th event)

Hence, the probability is:

In percent it is given by:

**To the nearest tenth it is: 2.1%**

ANSWERED AT 24/01/2020 - 06:01 PM

QUESTION POSTED AT 24/01/2020 - 06:01 PM

**Answer: The number of adult tickets sold is 168.**

**Step-by-step explanation: **Given that the Jillian's school is selling tickets for a play. The tickets cost $10.50 for adults and $3.75 for students.

The ticket sales for opening night totaled $2071.50. The equation representing the situation is

where a is the number of adult tickets sold and b is the number of student tickets sold.

We are to **calculate the number of adult tickets that were sold.**

If 82 students attended, then **b = 82.**

Substituting the value of b in equation (i), **we get**

**Thus, the number of adult tickets sold is 168.**

ANSWERED AT 24/01/2020 - 05:55 PM

QUESTION POSTED AT 24/01/2020 - 05:55 PM

One way to determine the factors of :

**x³ + 5x² - 6x - 30 = x² ( x + 5 ) - 6 ( x + 5 )**

If equation ax³ + bx² + cx + d = 0 has roots x₁ , x₂ , and x₃ then

Let us now tackle the problem!

To factor the equation given can be done in the following way

→ group it into two parts

→ factorize both parts

- Solving Quadratic Equations by Factoring : brainly.com/question/12182022
- Determine the Discriminant : brainly.com/question/4600943
- Formula of Quadratic Equations : brainly.com/question/3776858

**Grade: **High School

**Subject: **Mathematics

**Chapter: **Polynomial

**Keywords: **Quadratic , Equation , Discriminant , Real , Number , Polynomial , Factors

ANSWERED AT 24/01/2020 - 05:53 PM

QUESTION POSTED AT 24/01/2020 - 05:53 PM

Volume of cylinder A = π(12^2/4) x (40/2) = 2,262 cubic feet which will be hauled by locomotive BR73.

Volume of cylinder B = π(8^2/4) x 24 = 1,206 cubic feet which will be hauled by locomotive CG35.

Volume of cylinder C = π(16^2/4) x 16 = 3,217 cubic feet which will be hauled by locomotive YH61.

Volume of cylinder D = π(6^2/4) x 12 = 339 cubic feet which will be hauled by locomotive A450.

Volume of cylinder B = π(8^2/4) x 24 = 1,206 cubic feet which will be hauled by locomotive CG35.

Volume of cylinder C = π(16^2/4) x 16 = 3,217 cubic feet which will be hauled by locomotive YH61.

Volume of cylinder D = π(6^2/4) x 12 = 339 cubic feet which will be hauled by locomotive A450.

ANSWERED AT 24/01/2020 - 05:49 PM

QUESTION POSTED AT 24/01/2020 - 05:49 PM

D is the answer!!!!!

ANSWERED AT 24/01/2020 - 05:06 PM

QUESTION POSTED AT 24/01/2020 - 05:06 PM

Since he makes $3 an hour for picking apples, that is 3h,

$2.5 for each bushel he picks, that's 2.5b.

Together, we add these two for his total money earned in the week for picking apples.

The final equation is then a = 3h + 2.5nb to find how much money Greg earned in a week.

$2.5 for each bushel he picks, that's 2.5b.

Together, we add these two for his total money earned in the week for picking apples.

The final equation is then a = 3h + 2.5nb to find how much money Greg earned in a week.

ANSWERED AT 24/01/2020 - 04:50 PM

QUESTION POSTED AT 24/01/2020 - 04:50 PM

In problems of probability, it is best to find out the sample space or all the possible outcomes from throwing 3 coins in the air.

S = {HHH, TTT, HHT....}

The condition is at least 2 landed on heads (that means 2 or more). From the sample space, that can only be {THH, HHT, HTH, and HHH}.

Therefore, the probability is 3/4 since there are a total of 8 possible outcomes.

S = {HHH, TTT, HHT....}

The condition is at least 2 landed on heads (that means 2 or more). From the sample space, that can only be {THH, HHT, HTH, and HHH}.

Therefore, the probability is 3/4 since there are a total of 8 possible outcomes.

ANSWERED AT 24/01/2020 - 04:50 PM

QUESTION POSTED AT 24/01/2020 - 04:50 PM

Answer:1/5

Step-by-step explanation:

ANSWERED AT 24/01/2020 - 04:47 PM

QUESTION POSTED AT 24/01/2020 - 04:47 PM

12,021

18,181

23,332

25,552

these are some examples i came up with to help you figure out how to do this problem.

18,181

23,332

25,552

these are some examples i came up with to help you figure out how to do this problem.

ANSWERED AT 24/01/2020 - 04:46 PM

QUESTION POSTED AT 24/01/2020 - 04:46 PM

Three ways are

23/11 (23 over 11)

2.09

2 1/11 (see picture link for correct formatting.)

23/11 (23 over 11)

2.09

2 1/11 (see picture link for correct formatting.)

ANSWERED AT 24/01/2020 - 04:12 PM

QUESTION POSTED AT 24/01/2020 - 04:12 PM

There is a .383 chance of probability that he/she knows at least 8 of the words on the test.

ANSWERED AT 24/01/2020 - 04:06 PM

QUESTION POSTED AT 24/01/2020 - 04:06 PM

**Answer:**

** 45 minutes**

**Step-by-step explanation:**

Leon has to drive to work = 36 miles

His average speed = 48 miles per hour

By using the given formula = d = rt

d = distance

r = rate of speed

t = time

36 miles = 48 × t

= t

0.75 hours.

Now we convert it to minutes

0.75 × 60 = 45 minutes

Leon takes** 45 minutes** to get to work each day.

ANSWERED AT 24/01/2020 - 04:06 PM

QUESTION POSTED AT 24/01/2020 - 04:06 PM