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
KIM [24]
3 years ago
5

In Lucille’s class, 35% of the students have blond hair. There are 20 students in the class. How many students have blond hair.

Mathematics
2 answers:
kiruha [24]3 years ago
5 0

Answer:

7 students

Step-by-step explanation:

35% of the students have blond hair, and there are 20 students in the class.

"of" means multiply, therefore multiply 35% and 20.

35%*20

Convert 35% to a decimal by dividing by 100 or moving the decimal place 2 spots to the left.

35/100=0.35

35.0-->3.5-->0.35

0.35*20

Multiply

7

7 students in the class have blond hair.

MrRissso [65]3 years ago
3 0

Answer:

7 the answer is 7

Step-by-step explanation:

1. We assume, that the number 20 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 20 is 100%, so we can write it down as 20=100%.

4. We know, that x is 35% of the output value, so we can write it down as x=35%.

5. Now we have two simple equations:

1) 20=100%

2) x=35%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

20/x=100%/35%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 35% of 20

20/x=100/35

(20/x)*x=(100/35)*x       -

20=2.85714285714*x       -

20/2.85714285714=x

7=x

x=7

now we have:

35% of 20=7

we multiply both sides by x

then we divide both sides by 2.85714285714 to get x

You might be interested in
Find each answer mentally.
trapecia [35]

Answer:

1: 1/4 dollars or .25 dollars or 25%

2: 150 cents

3: 100 cents

4: 1/100 dollars, or 0.01 dollars, or 1%

Step-by-step explanation:

8 0
3 years ago
Sara has 4\frac{3}{4}4 4 3 ​ yards of red fleece and 2\frac{2}{3}2 3 2 ​ yards of blue fleece fabric. How many yards of red and
Musya8 [376]

Answer:

4567

Step-by-step explanation:

5 0
3 years ago
Write a linear inequality in two variables that has (-1, 3) as a solution but does not have (4,0) as a solution.
Stels [109]

Answer:  y ≤ -x + 2

<u>Step-by-step explanation:</u>

There are an infinite number of possible solutions.

Plot the two points, draw any line between them such that the two points are NOT connected, then choose the inequality symbol that shades (-1, 3).

Here is one solution that satisfies the requirements.   y ≤ -x + 2

Here is another: y < -x + 3

And another: y > x + 3

And one more: y ≥ x + 4

3 0
3 years ago
Mr. See weights his grades. Tests are worth 60%, quizzes are worth 25% and homework is 15%. Joey's test average is an 82, his qu
goldenfox [79]

Answer:

83.15

Step-by-step explanation:

Joey's current grade can be determined by weighting his scores with the weights given and adding the results

Tests = 0.6 x 82 = 49.2

Quizzes = 0.25 x 77 = 19.25

homework = 0.15 x 98 = 14.7

49.2 + 19.25 + 14.7 = 83.15

4 0
3 years ago
The graph shown is the graph of which function?
alukav5142 [94]
Where the pictures of the graph
5 0
3 years ago
Other questions:
  • **NEED HELP!!! 
    11·1 answer
  • Please help me answer this using systems of equations with elimination.
    12·1 answer
  • Given the system of linear x+4x=11 -5+y=2x
    5·1 answer
  • A lion's heart beats 12 times in 16 seconds. How many heartbeats will it have in 60 seconds?
    9·1 answer
  • Anyone? *tear* help please
    15·1 answer
  • Which graph represents a function? answerr FASTTTT PLZZZ
    13·2 answers
  • Which on is bigger 7/8 or 5/6
    12·1 answer
  • What make the following inequality true?
    6·1 answer
  • What is x if a line passes though (2,5) ( x,3)
    10·1 answer
  • Calculate the area in square metres for a triangle with a base 16.6 m long and a perpendicular height of
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!