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
katovenus [111]
3 years ago
12

In a class, 14 out of 20 students pack their lunches. What percent of students pack their lunches?

Mathematics
2 answers:
katen-ka-za [31]3 years ago
6 0
That would be 70 percent
valentina_108 [34]3 years ago
5 0

Answer:

70\%

Step-by-step explanation:

we know that

The probability of an event is the ratio of the size of the event space to the size of the sample space.

The size of the sample space is the total number of possible outcomes

The event space is the number of outcomes in the event you are interested in.

so

Let

x------> size of the event space

y-----> size of the sample space

so

P=\frac{x}{y}

In this problem we have

x=14

y=20

substitute

P=\frac{14}{20}=0.70

Convert to percentage form

0.70*100=70\%

You might be interested in
100.18 as a mixed number
ELEN [110]
100 18/100 or 100 9/50
7 0
3 years ago
Read 2 more answers
The sum of two numbers is 18. Twice the first number (x) minus the second number (y) is 6. Find the two numbers
ki77a [65]

Answer:

8 and 10

Step-by-step explanation:

Set the first number as x, the second as y

x+y=18

2x-y=6

This is an binary system of first order equations

3x=24

x=8

y=10

8 0
3 years ago
(25+3) - 7 x 3 + (2x4)
arlik [135]

Answer:

It is not correct, the answer is 15

Step-by-step explanation:

They forgot the rule of PEMDAS, and accidentally subtracted before they multiplied. It should've gone

(25+3) - 7 x 3 + (2x4)

28-7x3+8

28-21+8

Since it's minus 21, that means it's negative, so -21+8=13

28-13=15

4 0
3 years ago
Marisha walks 8 miles in 5 days. If she walks at the same rate, how far
stiv31 [10]

Answer:

56 miles

Step-by-step explanation:

6 0
3 years ago
The discriminant of a quadratic equation is equal to -8, which statement describes the roots?
Maslowich

Answer:

  (a)  There are two complex roots

Step-by-step explanation:

The discriminant of a quadratic function describes the nature of its roots:

  • <u>negative</u>: two complex roots
  • <u>zero</u>: one real root (multiplicity 2)
  • <u>positive</u>: two distinct real roots.

__

Your discriminant of -8 is <em>negative</em>, so it indicates ...

  There are two complex roots

_____

<em>Additional comment</em>

We generally study polynomials with <em>real coefficients</em>. These will never have an odd number of complex roots. Their complex roots always come in conjugate pairs.

6 0
2 years ago
Other questions:
  • Write the equation in standard form for the circle that has a diameter with endpoints (5,0) and (–5,0).
    7·1 answer
  • Evaluate each expression 12-3(4) and 12÷3(4) and 3×4(5-3) and 3(4+7)-5×4
    12·1 answer
  • Explain how to multiply 28 and 36 using the set of steps you learned.
    9·2 answers
  • If &lt;10 and &lt;15 are congruent, which lines are parallel? A.lines b and c B.lines c and d C.lines a and b D.No lines are par
    12·1 answer
  • The Sweet water High School Project Graduation committee is hosting a dinner-and-dance fundraiser at the Sweet water Community C
    14·2 answers
  • The sum of an irrational number and a rational number is irrational. Sometimes True Always True Never True
    9·2 answers
  • What could be used to evaluate the expression -6(4(2/3)
    8·1 answer
  • A grocer has 18kg of black tea worth 3.5per kg. She wants to mix
    14·1 answer
  • Someone help me please
    8·1 answer
  • »How many lines of symmetry does this figure have? x​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!