1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Delicious77 [7]
3 years ago
15

Tracey has 29 students in her class. She has 21 boys in her class. What is the ratio of girls to boys in her class

Mathematics
1 answer:
Xelga [282]3 years ago
6 0

First find the number of girls in her class.

29 student - 21 boys = 8 girls

So, the ratio of girls to boys is:

8 girls:21 boys

Or just:

8:21

answer: 8:21

You might be interested in
Write 61/4℅ as a decimal
marta [7]
61/4 % converted into a decimal is 15.25


3 0
3 years ago
What is y-7=8?one step equation
vodomira [7]

Answer:

y=15

Step-by-step explanation:

y-7=8

Add 7 to each side to cancel out the 7 next to the variable.

You get y=15.

7 0
3 years ago
Read 2 more answers
I will give Brainliest!! Please answer the question by simplifying!! Thanks so much and stay safe!!
Vadim26 [7]
Distribute 5/7 through the parentheses and add like terms after.

Answer: 11/7x + 11/35y
4 0
2 years ago
Write one sine and one cosine equation for each graph below.
pychu [463]

Answer:

Q13. y = sin(2x – π/2); y = - 2cos2x  

Q14. y = 2sin2x -1; y = -2cos(2x – π/2) -1

Step-by-step explanation:

Question 13

(A) Sine function

y = a sin[b(x - h)] + k

y = a sin(bx - bh) + k; bh = phase shift

(1) Amp = 1; a = 1

(2) The graph is symmetrical about the x-axis. k = 0.

(3) Per = π. b = 2

(4) Phase shift = π/2.  

2h =π/2

h = π/4

The equation is

y = sin[2(x – π/4)} or

y = sin(2x – π/2)

B. Cosine function

y = a cos[b(x - h)] + k

y = a cos(bx - bh) + k; bh = phase shift

(1) Amp = 1; a = 1

(2) The graph is symmetrical about the x-axis. k = 0.

(3) Per = π. b = 2

(4) Reflected across x-axis, y ⟶ -y

The equation is y = - 2cos2x  

Question 14

(A) Sine function

(1) Amp = 2; a = 2

(2) Shifted down 1; k = -1

(3) Per = π; b = 2

(4) Phase shift = 0; h = 0

The equation is y = 2sin2x -1

(B) Cosine function

a = 2, b = -1; b = 2

Phase shift = π/2; h = π/4

The equation is

y = -2cos[2(x – π/4)] – 1 or

y = -2cos(2x – π/2) - 1

6 0
3 years ago
The distribution of average wait times in drive-through restaurant lines in one town was approximately normal with mean \mu = 18
Alekssandra [29.7K]

Answer:193

Step-by-step explanation:193

7 0
3 years ago
Other questions:
  • How many solutions does the following equation have? 7(y+3)=5y+8
    5·1 answer
  • Evaluate log4 16. (2 points) −4 −2 2 4
    5·2 answers
  • Find the area of this parallelogram. Be sure to include the correct unit in your answer.
    13·1 answer
  • Given the following polynomial find the maximum possible number of turning points. f(x)=x^11+x^10+x^12+x^9
    12·1 answer
  • Write 240 as a product of primes. Use index notation where appropriate.
    10·1 answer
  • An elementary school class polled 198 people at a shopping center to determine how many read the Daily News and how many read th
    15·1 answer
  • How to solve question 20? Please help!!
    11·1 answer
  • E<br> B<br> 144<br> 00<br> 68<br> С<br> A<br> 6<br> 18<br> 68<br> 44°<br> F<br> D
    7·1 answer
  • HELP! IM BEING TIMED!! This is very important and I cant get it wrong!!! BRAINLIEST
    12·2 answers
  • A desk drawer is shaped like a rectangular prism. The height of the drawer is 7 inches. The bottom of the drawer has an area of
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!