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
olga55 [171]
3 years ago
8

All students in Ridgewood Junior High School either get their lunch in the school cafeteria or bring it from home on Tuesday. 5%

of students brought their lunch. 34 students brought their lunch. How many students in total are in Ridgewood Junior High School?
Mathematics
1 answer:
Alinara [238K]3 years ago
5 0

Answer:

680 students

Step-by-step explanation:

(34 x 100) / 5

multiply 34 by 100 and then divide that  total by 5

You might be interested in
If a + b + c.= 5 and ab + bc +ca = 10 , then prove that a3+ b3+ c3-3abc = -25
Alex Ar [27]

Start with

(a+b+c)^3=a^3+b^3+c^3+3(a^2b+a^2c+ab^2+ac^2+b^2c+bc^2)+6abc

Given that a+b+c=5, we know (a+b+c)^3=125.

Also, ab+bc+ca=10, so

a^2b+a^2c+ab^2+ac^2+b^2c+bc^2=a(ab+ac)+b(ab+bc)+c(ac+bc)

=a(10-bc)+b(10-ca)+c(10-ab)

=10(a+b+c)-3abc

=50-3abc

So we have

125=a^3+b^3+c^3+3(50-3abc)+6abc

125=a^3+b^3+c^3+150-9abc+6abc

\implies -25=a^3+b^3+c^3-3abc

QED

3 0
3 years ago
Devin started the work shown to solve for the unknown angle measures. 8x – 1 + 9x – 6 = 180 17x – 7 = 180 17x = 187 What are the
makvit [3.9K]

Answer:

m

m

Step-by-step explanation:

we have that

m

m

m ------> by supplementary angles

Substitute the values and solve for x

8x-1+9x-6=180\°

17x-7=180\°

17x=187\°

x=11\°

Find the value of angle R

m

Find the value of angle Q

m

6 0
4 years ago
Read 2 more answers
What is 3/5 of 7 kg ?
MAVERICK [17]
What is 3/5 of 7 kg ?

of = multiplication

3/5 × 7 = ?
0.6 × 7 = 
4.2

3/5 of 7 kg is 4.2 kg.
3 0
4 years ago
Read 2 more answers
4 whols and 4/5 divided by 4/5
Andre45 [30]

Answer:

6

Step-by-step explanation:

4\frac{4}{5} ÷ \frac{4}{5}

= \frac{24}{5} ÷ \frac{4}{5}

= \frac{24}{5} * \frac{5}{4}

= \frac{120}{20}

= 6

5 0
3 years ago
6. Christopher wants to leave a 15% tip for his breakfast. His breakfast cost $23.00, how
Anestetic [448]

Answer:

$3.45

Step-by-step explanation:

The tip is 15% of his breakfast, that means 15% of 23

That is 15%* 23= 15*23/100= 3.45 $

The tip is $3.45

Have a good day.

7 0
3 years ago
Other questions:
  • In 25 minutes Li can run 10 laps around the track. Determine the number of laps she can run per mile
    8·2 answers
  • What is the factored dorm of 1256x to the sixth power minus 8​
    8·1 answer
  • ​​can anyone please solve this...............
    5·2 answers
  • Each digit 8 in the number 8.888 has a different value placed on its place in the place-value chart. Each 8 is multiplied by its
    14·1 answer
  • Solve -3y + 12 = -48
    6·1 answer
  • Anyone knows the answer?
    12·1 answer
  • You have decided to purchase a new stereo system made by Ownur 3ar5. Your local audio store has the company’s latest stereo and
    14·2 answers
  • Given: △ABC, AB=BC=10 cm,
    12·1 answer
  • If Mark 12 times older than his brother and his brother is 7 times younger how old his brother​
    8·1 answer
  • Please hurry!!!!!!!!!!!!!!!!!!!!!!!!!!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!