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
lord [1]
3 years ago
7

21 first-graders and 54 other students attended a school assembly. What percentage of the students at the assembly were first-gr

aders?'
Mathematics
1 answer:
Degger [83]3 years ago
5 0
21+ 54= 76

21/76= 27.6%

You might be interested in
Mr. Rodriguez, a college instructor, can grade his class papers in 3 hours while it takes his assistant 4 1 2 hours. If Mr. Rodr
const2013 [10]

Answer:

  3 hours

Step-by-step explanation:

Rodriguez did 1/3 of the job, so the remaining 2/3 of the job will take the assistant 2/3 of the usual time:

  (2/3)(4 1/2) = 3 . . .  hours

The assistant can complete the job in 3 hours.

6 0
3 years ago
indictate which of the following are propositions.For the ones which are propositions, determine the truth value.(a) The integer
Semmy [17]

Answer:

Step-by-step explanation:

When we propose an hypothesis, it is either true or false. The same goes for a proposition.

The required objective here is to determine the truth value in the following proposition.

(a) The integer 24 is prime.

(b) Is the integer 3​15​ even?

(c) The sum of 3 and 4 is 12.

(d) -4 ∈ Ζ

From the first option:

(a) The integer 24 is prime.

The sentence is a proposition but the truth value is FALSE because a prime number is a number that can only be divide by 1 and itself but in the case of 24, Its factors include  1,2,3,4,6,8,12 and 24 which make 24 to falsify the proposition of being  a prime number.

(b) Is the integer 3​15​ even?

This option is not a proposition but rather a question since it has a question mark, however, 315 is an odd number since it is not divisible by 2.

( c)  The sum of 3 and 4 is 12.

This is a proposition and the truth value is FALSE

The sum of 3+4 = 7  ; Hence; 7 ≠ 12

(d)   -4 ∈ Ζ

This is a proposition and the truth value is TRUE.

-4 ∈ Ζ  is read as ( minus four is an integer  (∈)  of Z )

Yes, this is a proposition and its Truth value is TRUE , since  minus four is an integer  (∈)  of Z

6 0
3 years ago
Which is the correct simplified form of the expression? (HELP)
aksik [14]
The answer should be option C! I think? I hope it helps :)
8 0
3 years ago
Select all ratios equivalent to 4:3.
valentina_108 [34]

Answer:

8:6 and 16:12

Step-by-step explanation:

5 0
3 years ago
aaron walks 2 1/8 miles to his friends house. then, they walk 5/6 miles to the park .finally, aaron walks 1 3/4 miles to get bac
lisov135 [29]

Answer:did you check and see if anybody asked this question before??

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • By what can you divide 66 and 72
    12·1 answer
  • create three different drawings showing a number of circles and triangles in which the ratio of circles to triangles is 2:3
    8·2 answers
  • What figure can be formed by a vertical slice perpendicular to the bases of a cylinder
    13·1 answer
  • Estimate the quotient. 6 2/5 ÷ 2 6/7 ? A) 2 B) 4 C) 5 D) 3 and please explain it . ty
    9·1 answer
  • A 92 ft path cuts diagonally from Mateo St. to Cove St. It makes an angle of 68° with Cove St. and an angle of 34° with Mateo St
    10·2 answers
  • Below are the ratings for a sample of 12 hotels in small Ontario towns:
    15·1 answer
  • Jared is constructing a circle graph to
    5·1 answer
  • Helppp ASAP. Emma wants to enlarge a square photo and print it to a square canvas. The side
    10·1 answer
  • If (-3, 4) is reflected across the y axis what are the new coordinates
    11·2 answers
  • if the lesser of two consecutive even integers is seven more than half the greater, what are the two integers?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!