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
patriot [66]
3 years ago
15

Using equivalent ratios to find a whole \/

Mathematics
1 answer:
Shkiper50 [21]3 years ago
5 0

Answer:

C.

Step-by-step explanation:

So there are 20 kids with brown hair and this represents 80% of the class total.

So this means 20=.8n since we don't know the total number of kids.

20=.8n

Divide both sides by .8

25=n

So 25 is the total number of kids.

C. is the answer

You could also setup this equation given that 80% is 80/100:

[tex]\frac{20}{\text{ total }}=\frac{80}{100}

To figure out what that total is there you can divide top and bottom of the fraction on right hand side by 4 which gives you the 20 on top and the 25 on bottom.

You might be interested in
Which of the following expressions are equivalent to \left(9\dfrac{7}{8} + 2\dfrac{4}{5}\right)-\dfrac{1}{2}(9 87​ +2 54​ )− 21​
lora16 [44]

Answer:

12\dfrac{7}{40}

Step-by-step explanation:

The given expression is

\left(9\dfrac{7}{8} + 2\dfrac{4}{5}\right)-\dfrac{1}{2}

We need to find the simplified form of the given expression.

It can be rewritten as

\left(9+\dfrac{7}{8} + 2+\dfrac{4}{5}\right)-\dfrac{1}{2}

Combine integers and fractions separately.

(9+2)+(\dfrac{7}{8}+\dfrac{4}{5}-\dfrac{1}{2})

Taking LCM we get

11+\dfrac{35+32-20}{40}

11+\dfrac{47}{40}

In can be written as

11+\dfrac{40+7}{40}

11+1+\dfrac{7}{40}

12+\dfrac{7}{40}

12\dfrac{7}{40}

Therefore, the expression 12\dfrac{7}{40} is equivalent to the given expression.

5 0
3 years ago
Please help me i need help points and brainly
snow_lady [41]
The values go up by 2. So your answer would be 20.
4 0
3 years ago
Read 2 more answers
Kimberly drives at a rate of 50 miles per hour on her trip across the country. If it takes Kimberly 200 gallons of gasoline to d
ipn [44]

Answer:

3x

Step-by-step explanation:

50 mi/hr × (1 hr / 60 min) × (200 gal / 500 mi) = ⅓ gal/min

(⅓ gal/min) × (t min) = x gal

t = 3x

3 0
3 years ago
Can someone plz help me
meriva
Faith has a ratio green:red of 24:6  which equals 4:1   which is >1

Faith is the answer
3 0
3 years ago
Which of the following equations is correct?
r-ruslan [8.4K]

Answer:

i have the same question someone helppppppp

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • PLEASE HELP!!! I NEED ANSWER ASAP. WILL MARK AS BRAINLIEST IF CORRECT
    5·1 answer
  • Solve for x <br> 4( 3x - 5) = -2(-x + 8) - 6x
    15·1 answer
  • For three consecutive years, Sam invested some money at the start of the year. The first year, he invested x dollars. The second
    9·1 answer
  • A student is trying to solve the system of two equations given below: Equation P: y + z = 6 Equation Q: 8y + 7z = 1 Which of the
    13·2 answers
  • Help!!!! I will give you brainiest!!!! Pls<br><br> find the solution of y=3x+5 for x=-2
    10·2 answers
  • Write the equation 2x - 3y = 6 in slope-intercept form.<br>​
    7·1 answer
  • - 27 - 13c=9<br><br><br> would this come out to be a fraction?
    12·1 answer
  • Sin (a/2) = + or - sqrt 1-cos a / 2 <br> for all values of a.<br> A. True<br> B. False
    7·1 answer
  • suppose you scored a 99%, 67%, 83%, and 86% on your last four science tests. if your next text counts twice, is it possible to a
    10·1 answer
  • Solve for x and y!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!