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
bekas [8.4K]
3 years ago
12

Yesterday, 4/7 of the 210 students in a contest gave their speeches. How many students gave their speeches?

Mathematics
1 answer:
Elenna [48]3 years ago
6 0

Answer:

120.

Step-by-step explanation:

210 * 4/7

=  30 * 4

= 120.

You might be interested in
An auditorium has 20 seats on the first row, 24 seats on the second row, 28 seats on the third row, and so on and has 30 rows of
Lilit [14]

Answer:

140

Step-by-step explanation:

20+4(s)=

20+4(30)=

20+ 120=

140

8 0
3 years ago
Show (prove) in detail why (xyz)4 =x4 y4 z4 for any number x,y,z
Ganezh [65]
By using distributive property you can distribute (XYZ)4 and get a simplified answer of 4(x)+ 4(y) + 4 (z). The parenthesis show that 4(xyz) is not simplified and could also be written as 4(x)+ 4(y) + 4 (z).
7 0
3 years ago
How do you solve this?
masha68 [24]
Here's what i found online:

<span>a/3+4=6

We simplify the equation to the form, which is simple to understand
<span>a/3+4=6

Simplifying:
<span> + 0.333333333333a+4=6

We move all terms containing a to the left and all other terms to the right.
<span> + 0.333333333333a=+6-4

We simplify left and right side of the equation.
<span> + 0.333333333333a=+2

We divide both sides of the equation by 0.333333333333 to get a.
<span>a=6

Hope this helped :-)</span></span></span></span></span></span>
4 0
3 years ago
Write a sine function that has an amplitude of 5, a midline of 3 and a period of 1/8.
vodomira [7]

Answer:

y=5sin(16pix)+3

Step-by-step explanation:

Amp=5 means our curve is either y=5sin(bx+c)+d or y=-5sin(bx+c)+d.

y=sin(x) has period 2pi.

So y=sin(bx) has period 2pi/b.

We want 2pi/b=1/8.

Cross multiplying gives: 16pi=b

y=5sin(16pix+c)+d

d=3 since we want midline y=3.

y=5sin(16pix+c)+3

We can choose c=0 since we aren't required to have a certain phase shift.

y=5sin(16pix)+3

6 0
3 years ago
The following table shows the number of internet users in 2012 for the highest using countries.
Arisa [49]
The median is 152 internet users :)
8 0
3 years ago
Other questions:
  • 1 + 69 - (6x+4) x 2 = ?
    14·1 answer
  • There are 12 different pizza toppings, and Arturo must rank his top 5 in order. How many different possible rankings are there?
    7·1 answer
  • Solve for x 6n+8=4n-5+6n-3
    8·1 answer
  • NEED HELP ASAP!!!!!!!!
    12·1 answer
  • If y varies directly as x, and y = 10 when x = 9, find y when x = 1/9
    11·1 answer
  • Consider a collection of envelopes consisting of 1 red envelope, 2 blue envelopes, 2 green envelopes.and 3 yellow envelopes. If
    13·1 answer
  • Angle sum Theory
    10·1 answer
  • What is 5 +10 - 20 x 4
    10·2 answers
  • If u help me your dreams will come true ya know
    11·1 answer
  • A deck of cards contains 5 black cards numbered 5 to 9 and 5 red cards numbered 1 to 5. How many 6-card hands having 4 black car
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!