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
Xelga [282]
2 years ago
12

G

Mathematics
1 answer:
kvv77 [185]2 years ago
8 0

Answer:

Girls in Mr. Chang's class: 28 - 21 ; # girl students = # total students - # boy students ; 7 girl students.

Boys in Mr. Chang's class: 28 - 7 ; # boy students = # total students - girl students ; 21 boy students.

You might be interested in
Last one yall pls help me!
Xelga [282]

Answer:

8. 5/6

9. 6.25 or 6 1/4

10. 14.4 Fish

Step-by-step explanation:

8. Reduce the fraction. (20/24) You can divide both the numerator and denominator by 4.

9. Divide 75 by 12

10. Divide 72 by 5

8 0
2 years ago
Carlos is 33 years younger than Kristen. 2 years ago, Kristen's age was 2 times Carlos's age. How old is Carlos now?
ale4655 [162]

Answer:

Carlos is 35 years old now

Step-by-step explanation:

Assume that Carlos is x years old now

∵ Carlos is x years old now

∵ Carlos is 33 years younger than Kristen

- Kirsten's age is the sum of x and 33

∴ Kirsten is x + 33 years old now

2 years ago

∵ Carlos's age = x - 2

∵ Kristen's age = x + 33 - 2 = x + 31

∵ Kristen's age was 2 times Carlos's age

- Equate Kristen's age by 2 times Carlos's age

∴ x + 31 = 2(x - 2)

- Simplify the right hand side

∴ x + 31 = 2x - 4

- Subtract x from both sides

∴ 31 = x - 4

- Add 4 to both sides

∴ 35 = x

∵ x represents Carlos's age now

∴ Carlos is 35 years old now

6 0
3 years ago
Prove that Tan x + Cos x = 1 /Sin x .Cos x​
Anit [1.1K]

Answer:

tanx + cotx =  \frac{1}{sinxcosx}

Step-by-step explanation:

<u><em>Explanation</em></u>

Take R.H.S   = \frac{1}{sinxcosx}

            =      \frac{sin^{2}x+cos^{2}x  }{sinxcosx}

          =      \frac{sin^{2}x }{sinx cosx} + \frac{cos^{2} x}{sinxcosx}

        = \frac{sinx}{cosx} + \frac{cosx}{sinx}

        = tanx + cotx

tanx + cotx =  \frac{1}{sinxcosx}

             

5 0
3 years ago
What are equivalent fractions for 8/11 and 1/10 using the least common denominator?
mote1985 [20]

Answer:

2/10 because if the two fraction

4 0
3 years ago
After a snowstorm in the town of Golden Glen, the morning temperature was – 10°F. But by the afternoon, the temperature had rise
spayn [35]

Answer:

7°F

Step-by-step explanation:

We have the following information from the question;

Morning temperature = -10°F

Increase in temperate = 17°F

Afternoon temperature = the unknown

Since;

Increase in temperature = Afternoon temperature - morning temperature

Then;

Afternoon temperature = increase in temperature + morning temperature

Afternoon temperature = 17°F + (-10°F)

Afternoon temperature= 7°F

5 0
3 years ago
Other questions:
  • What is the location of the point on the number line that is 2/5 of the way from A = -6 to B = 9
    14·1 answer
  • a blue scarf is 1.7 yards long. A green scarf is 1 whole ad 4/5 yards long. Which scarf is longer ? How much longer ?
    12·1 answer
  • How do u graph this?
    6·1 answer
  • If each face of a cube has in area of 16 square feet, what is the<br> cube's total surface area?
    7·1 answer
  • Solve for x: 3.2x - 7.4 = -7.8x + 3.6<br> 1.<br> 1<br> 2.<br> 0.8<br> 3<br> 3.8<br> 4.<br> 0.5
    6·1 answer
  • The local drugstore is offering 15% off the normal price for a 16-pack of AAA batteries. If a 16-pack of AAA batteries is normal
    11·1 answer
  • What is the reference angle for 7pi/6​
    11·1 answer
  • Connie has to solve the following problem.
    6·1 answer
  • Magda works at a charity for homeless people.
    12·1 answer
  • can someone help me figure this out?? My sisters at work rn she usually helps me with algerbra pleasee help!​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!