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The mean weight of 60 students of a class is 40 kg the mean weight of boys is 50 kg while that of the girls is 30 kg find the number of boys and girls in the school ??? Please help me with this.
answered
Apr 22, 2020
Mathematics
middle-school
5
votes
85.3k
views
Give reasons. Tall buildings are provided with wide foundation area.
answered
Apr 1, 2020
Biology
middle-school
3
votes
152k
views
Which is the strongest revision of the following sentence? If students can not be noisy, have all their trash picked up afterward, and not enter other buildings during lunch, then they can eat on the hill
answered
Nov 8, 2019
English
high-school
0
votes
213k
views
Do you remember the 21st night of September?
answered
Mar 16, 2019
English
high-school
7
votes
148k
views
How does pemdas work?! It always confuses me!
answered
Mar 7, 2019
Mathematics
high-school
0
votes
23.8k
views
What is the correct way to list the author's name in a citation of a work by Dr. Al A. Garcia-Lopez, Alba, Dr, Sr B. Garcia-Lopez, Alba, Dr. C. Garcia-Lopez, Alba D. Garcia-Lopez, Alba, Sr
answered
Feb 8, 2019
English
college
6
votes
23.0k
views
Which sentence does not contain any errors in comma usage ? a) Gentle Mr. Barnes , a soft - spoken man loves dogs. b) We rode in Joe's car, a green minivan. c) The land that is now Washington the Evergreen
answered
Dec 27, 2018
English
high-school
2
votes
229k
views
What is the simplified form of the expression? ( m^-1 m^5 / m^-2) ^-3
answered
Nov 28, 2018
Mathematics
middle-school
3
votes
92.9k
views
Solve-25^x=125^x-7 *Thx*
answered
Aug 26, 2018
Mathematics
middle-school
1
vote
89.8k
views
What is 12 out of 15??
answered
Jul 25, 2018
Mathematics
high-school
2
votes
2.5k
views
What is secondhand smoke?
answered
Jul 3, 2018
Health
middle-school
6
votes
105k
views
on a nearby pond, black and white ducks are swimming in groups of three. James wants to find the experimental probability of two white ducks one black duck swimming together. design a simulation using
answered
May 18, 2018
Mathematics
college
3
votes
26.0k
views
What is the difference & similarities of matter and mass ?
answered
Jan 9, 2018
Mathematics
high-school
1
vote
190k
views
each bottle of water contains 250 milliliters of water if you drink 2 bottles every day how many liters of water will you drink in 8 days
answered
Sep 16, 2017
Mathematics
middle-school
3
votes
227k
views
Identify the type of sentence. Is this a place where I can find landscaping rock? simple sentence compound sentence complex sentence compound-complex
answered
Aug 6, 2017
English
high-school
5
votes
112k
views
In the classroom demonstration where a volunteer strikes an anvil resting on the physics professor's chest will he lies reclined, the anvil shields the daring physics professor from most of the sledgehammer's:
answered
Mar 6, 2017
Physics
middle-school
2
votes
131k
views
Why are there more debates than answers when discussing stem-cell research?
answered
Feb 2, 2017
Biology
high-school
4
votes
129k
views
1. (1 pt) I was a Portuguese nobleman who left Portugal in 1497, sailed around Africa, and reached India in May 1498. Who was I? A. Pedro Cabral B. Vasco da Gama C. Ferdinand Magellan
answered
Aug 16, 2016
History
high-school
5
votes
48.4k
views
Betty swam 100 meters in 2 minutes. Which rate represents this situation??A. 100 minutes/ 2 minutes B.100 meters/ 2 meters C. 100 minutes 2 meters D. 100 meters 2 minutes
answered
Jul 26, 2015
Mathematics
middle-school
5
votes
108k
views
Simplify using order of operations(PEMDAS): (2^3x6)-3^2
answered
May 12, 2015
Mathematics
middle-school
2
votes
208k
views
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