Mathematics College

How many boys are there in an introductory Chinese course if 390 students are enrolled and there are seven boys to every three girls?

Answers

Answer 1
39 I think because seven plus 3 is 10 and divide with 390 it will be 39

Related Questions

GCF of 48, 36, and 16. (this is all I need thx) :)

Answers

Answer:

4

Step-by-step explanation:

16=2^4

48=2^4·3

36=2²·3²

GCF=2^2

=4

hope this helps :)

tony completes one lap of a track every 20 seconds. diana completes one lap of the same track every 55 seconds. suppose tony and diana start at the starting line at the same time. how many seconds will it be before they cross the starting line at the same time again?​

Answers

Answer:

220 seconds.

Step-by-step explanation:

55, 110, 165, 220.

20,40,60,80,100,120,140,160,180,200,220.

Both have 220 in common so will cross at 220 seconds at the same time.

Cory writes the polynomial x7 + 3x5 + 3x + 1. Melissa writes the polynomial x7 + 5x + 10. Is there a difference between the degree of the sum and the degree of the difference of the polynomials?

Answers

Answer:

Yes??

Step-by-step explanation:

7+3x5+3x+1

7+15+3x+1

22+3x+1

3x+23

7+5x+10

5x+17

Yes, much difference

---

hope it helps

sorry if i'm wrong, sum of the x's confused me

Answer:D

Step-by-step explanation:

500 people were surveyed about their favorite type of pet. 55% of the people said
"dog", 1/10 said "cat", 0.3 said "bird", and the rest said "other". How many people
responded "other"?

Answers

Answer:

25/500 or 5% said 'other'

Step-by-step explanation:

55% = 275 (dog)

1/10 = 50 (cat)

0.3 = 150 (bird)

Total = 475

475 out of 500 (95%) gave an answer other than 'other'

Tony weighs his pet turtle on a scale in his bathroom. The turtle weighs 6 1/4 ​ pounds. His turtle weighed 3 1/6 ​ pounds when he first got him. About how much more does his turtle weigh now?

Answers

3 1/12. Find the lowest common denominator. Multiply the the numerator and denominator by that. Then simplify.

What App or what Website can help me solve problems of Statistics? ​

Answers

the varsity tutors ap statisyics app (app)

Find the vertex of the parabola y = x2 + 5x.

Answers

Write the equation as a mathematical expression.
y = x^2+5x

Rewrite the equation in vertex form
y = (x+(5/2))^2 -(25/4)

Find a h and k using the vertex form y=a(x-h)^2 + k
a=1
h=(-5/2)
k= (-25/4)

answer: (-5/2 , -25/4)

Anna charges $8.50 an hour to babysit how long will it take to make $51.00

Answers

Answer:

6 hours

Step-by-step explanation:

$51.00 ÷ $8.50 = 6 hours

hope this helps ! :))

43.1424 divided by 8.56

Answers

Answer: 5.04

Step-by-step explanation:

the answer is 5.04 :p

Hello pls help will give good old BRAINLYEST YAY

Answers

Answer:

D

Step-by-step explanation:

The mean, median, and mode all are 3

The radius of a circle is 4 centimeters. What is the circle's area?

Answers

The formula to find area of a circle is A = π r².

The radius is 4, so we can plug that in.

A=π4²

4 squared is 16.

A=π(16)

We can use 3.14 for pi.

A=3.14*16

A=50.24

So the area of this circle is 50.24 cm²

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hope it helps

chose the number equal to -9 times -1/3

Answers

i’m pretty sure it’s 3. The number equal to -9 times -1/3 is 3

A card is picked at random from a pack of 52 playing cards. The probability that it is a 6

Answers

Answer: 4/52 = 1/13

Step-by-step explanation: Every card in the deck has 4 suits which means that there will be 4 sixes in the deck so the probability will be any of the 4 out of the whole 52 or 1/13.

Brainliest plz

John buys an item that costs $50.00 is marked 20% off. Sales tax for the item is 8%. What is the final price that John pays, including tax?

Answers

Answer:

$43.20

Step-by-step explanation:

20% of $50.00 is $10.00. $50 - $10 is $40. 8% of $40 is $3.20. Since this is tax, you must add it. $40+$3.20 = $43.20

On which day of the month were you born?

a Categorical
or
b Numerical​

Answers

Answer:

a (typing more bc of limit lolol)

Calculate the area of the shape below.

Answers

Answer:

6 1/2 in^2

Step-by-step explanation:

(4(3 1/4)) / 2 = 6 1/2 in^2

Answer:

6 1/2 or 6.5 in2

Step-by-step explanation:

A= Bxh/2

4x 3.25/2= 6.5

A=6.5 of 6 1/2

What is the value of x in this figure?
Enter your answer in the box.
x=

Please help meeee!!

Answers

Answer:

x=48°

Step-by-step explanation:

We two lines cross over each other, making four angles, the angles opposite each other are equal. They're called vertically opposite angles.

x=48 degrees
extra characters:hsjahjshajsjanns

In 2010, the number of clown costumes sold at a single costume shop was 15. By 2015, that number had grown to 30. Assuming a constant increase in clown costume sales, calculate the unit rate of change (slope) from 2010 to 2015.
what's the answer please

Answers

Answer:

2009

Step-by-step explanation:

because 30434+3439438=34343434837 so that means its 2009

(PART 2) Shout to the friend helping me

Answers

Answer:

6. 1351.92

7. -52

8.Bus Pass

9.448

10. No she of by two dollars

Solve the equation for s.P-5=3s+8solve for

Answers

Answer:

here you go! i couldnt write it but Goodluck! :)

Step-by-step explanation:

Can someone help me pls

Answers

Answer:

AB is not a tangent

Step-by-step explanation:

yOA^2=OB^2+AB

AB y a tangent

19^2=361,15^2=225, 8^2+64=289

So here the tangent isn't a tangent.

Hope it helps.....

most adult medication doses are for a person weighing 150 pounds. for a 45 pound child, the adult dose should be multiplied by 0.3. if the child's dose of a decongestant is 18 milligrams, what is the adult dose?

Answers

Answer: 60

60 divided by 0.3 = 18

A cruise ship travels at a constant speed. In 3 hours, the ship travels 72 nautical miles. If the ship continues to travel at the same rate, how far would it travel in 11 hours. (No links) (if it’s wrong I will report and delete) (explain)

Answers

Answer:

264

Step-by-step explanation:

72 divided by 3= 24

24x11=264

The exchange rate is 156 pesos for 1 US dollar. You have $20.00 US. How many pesos do you have?
A. $128.00
B. $0.13
C. $3,120.00
D. $312.00

Answers

Step-by-step explanation:

C you are gonna have 3,120.00 pesos

PLS HELP WILL GIVE BRAINLIEST IVE BEEN ASKING FOREVER :(((((

Answers

Answer:

     __

C) 0.36

Step-by-step explanation:

4÷11= 0.36363636363636

so it's 0.36 with a line over it indicating a repeating decimal

Keisha’s basketball game started at 3:30 and ended at 4:47. How much time elapsed during the game?

Answers

Answer:

1 hour and 17 min

Step-by-step explanation:

it takes 30 min to get to 4  the another 30 min to get to 4:30 then 17 min to get to 4:47

A family buys 4 airline tickets online. The family buys travel insurance that costs ​$19 per ticket. The total cost is ​$752. Let x represent the price of one ticket. Write an equation for the total cost. Then find the price of one ticket.

Answers

Answer : 169

Step-by-step explanation:

4(x+19) = 752

4x +76 = 752

4x = 752 - 76

x = 676/4

x=169

Hope this helps ;)

Please mark me the BRAINLIEST

How high is the end of the ladder against a building

Answers

Is there a picture or no?

Alice has 5 quarters and 2 nickels. How many cents does Alice have

Answers

Answer:

Alice has 135 cents, or $1.35.

Step-by-step explanation:

A quarter is worth 25 cents.A nickel is worth 5 cents.Multiply 25 by 5, since there are 5 quarters. That will give you 125.Multiply 5 by 2, since there are 2 nickels. That will give you 10.Add 125 and 10. That will give you 135, which is your answer!

Which point represents the opposite of —5 on the number line?

Answers

Answer:

5 :)

Step-by-step explanation:

The answer that points the opposite of -5 is 5
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