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
nasty-shy [4]
3 years ago
6

you are in a room with other students and are asked to get in groups of 3. when finished, there are 21 groups of 3. how many stu

dents are in the room?
Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
5 0
63 because you multiply the numbers
Nataliya [291]3 years ago
4 0

Answer:

63

Step-by-step explanation:

Total groups: 21

number of students in each group: 3

total = 21 *3 =63

You might be interested in
Describe in words the region of R3 reperesented by the equations or inequalities x2+y2+z2≤3
Vaselesa [24]

Answer:

The region represented by the equation is a full sphere of radius √3 centered in the origin of coordinates.

Step-by-step explanation:

<em>In a plane xy, the equation that represents a circle with center in the origin, of radius r is</em>

x^2+y^2=r^2

<em>in R³, or a space xyz, we can represent a sphere with its center in the origin, and of radius r, with the equation</em>

x^2+y^2+z^2=r^2

So, in this problem we have that

3=r^2

which means that the sphere has a radius of √3.

<u>Finally, our equation is an inequality</u>, and the sphere is equal to, and less than, the calculated radius.

Therefore, the sphere is "full" from the surface to its center.

8 0
3 years ago
Blake makes $275 per week but 20 percent is withheld from his paycheck for taxes. How much does Blake bring home each week?
rjkz [21]
275×0.20 equals $55 withheld. 275-55=220. He brings home $220 each week
4 0
3 years ago
Read 2 more answers
Reese wants to organize a party and decides to save money for it.He calculates that he needs $420 in 9 weeks.He already has $60
disa [49]

Answer:

3840

Step-by-step explanation:

5 0
2 years ago
How do I write 8 more than k
lys-0071 [83]

Step-by-step explanation:

<h3><em>To</em><em> </em><em>write</em><em> </em><em>8</em><em> </em><em>more</em><em> </em><em>than</em><em> </em><em>follow</em><em> </em><em>this</em><em>:</em><em>-</em></h3><h3><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>k</em><em>+</em><em>8</em></h3>
6 0
3 years ago
Use Midpoint and Slope Formulas to complete the tables below.1. Find the midpoint of RP, given the coordinates R (5, 8) and P (3
poizon [28]

The midpoint formula for a segment is:

x_m,y_{_m}=\frac{(x_1+x_2)}{2},\frac{(y_1+y_2)}{2}

apply to points R and P

\begin{gathered} x_m,y_m=\frac{(5+3)}{2},\frac{(8+6)}{2} \\ x_m,y_m=\frac{8}{2},\frac{14}{2} \\ x_m,y_m=(4,7) \end{gathered}

using the definition of slope find the slope of the segment

m=\frac{y_2-y_1}{x_2-x_1}

apply to points R and P

\begin{gathered} m=\frac{8-6}{5-3} \\ m=\frac{2}{2} \\ m=1 \end{gathered}

to lines are parallel when the slopes are the same

\mleft\Vert m=1\mright?

two lines are perpendicular when the product of the slopes is equal to -1

\begin{gathered} m\cdot\perp m=-1 \\ 1\cdot\perp m=-1 \\ \perp m=-\frac{1}{1} \\ \perp m=-1 \end{gathered}

7 0
1 year ago
Other questions:
  • -2(2x-o.8)=21.6 what does x equal?
    11·1 answer
  • Find the equation of the line that passes through (-4,1) and is parallel to 1/2
    6·1 answer
  • Twin Primes (a) Let p &gt; 3 be a prime. Prove that p is of the form 3k +1 or 3k – 1 for some integer k. (b) Twin primes are pai
    14·1 answer
  • My teacher is making us do online and my problems is to find 62×1000 annex Then there's a blank zeros to Then another blank to f
    13·1 answer
  • Super easy geometry please help
    13·2 answers
  • ASAP! ALGEBRA 1! GIVING BRAINLIEST! Please read the question THEN answer CORRECTLY! No guessing. Show your work or give an expla
    13·1 answer
  • Can u help plz
    10·1 answer
  • What is 88 + 99<br> Tyler said 88 cupcakes are with 99 pancakes<br> anyone p l a y r o b l o x
    8·1 answer
  • Midpoint (12, -9), endpoint (19, 0) the other endpoint is ​
    11·1 answer
  • What is the distance between points M(2,6) and N(3,1)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!