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
Phoenix [80]
3 years ago
5

Why is it helpful to find different representations of the same number?

Mathematics
1 answer:
Paul [167]3 years ago
5 0
Looking at a number in different ways can help understand it’s application better. For example, giving an answer with radicals(square roots) is precise, but it’s not practical because you really don’t know what that number means.
You might be interested in
On Melissa's 6th birthday, she gets a $6000 CD that earns 3% interest, compounded semiannually. If the CD matures on her 13th bi
nikklg [1K]
What are you looking for
5 0
3 years ago
3/4 of the students at Bismarck High are less than 16 years old. If there are 1200 students at the school, how many of them are
just olya [345]
3/4 = 0.75

1200 x 0.75 = 900
5 0
2 years ago
There are 11.5 ounces of cereal in a container. Additional cereal is poured into the container at a rate of 3.15 ounces per seco
PtichkaEL [24]

Answer:

It will take 3.65 seconds at the rate it's being poured.

Step-by-step explanation:

8 0
3 years ago
A car run 3/4 mile per minute another car can run 4/5 mile per minute.what is the difference in speed in miles per hour?
dybincka [34]

Answer:

3 miles per hour

Step-by-step explanation:

We need to subtract the two numbers to find the difference in speeds

4/5 - 3/4

We need to get a common denominator of 20

4/5 *4/4 - 3/4 *5/5

16/20 - 15/20

1/20  

The car going 4/5 miles per minute is going 1/20 miles per minute faster than the car going 3/4 miles per minute.

The question asks for miles per hour, not miles per minute.  We know  that there are 60 minutes per hour.

1/20 miles per minute * 60 minutes / hour

60/20 miles/hour

3 miles/ hour

The car going 4/5 miles per minute is going 3 miles per hour faster than the car going 3/4 miles per minute.

3 0
3 years ago
Pleasee help x.x 1. Solve the system by elimination-
patriot [66]
Q1. The answer is x = 1, y = 1, z = 0

<span>(i) -2x+2y+3z=0
</span><span>(ii) -2x-y+z=-3 
</span>(iii) <span>2x+3y+3z=5
</span><span>_________
Sum up the first and the third equation:
</span>(i) -2x+2y+3z=0
(iii) 2x+3y+3z=5
_________
5y + 6z = 5

Sum up the second and the third equation:
(ii) -2x-y+z=-3 
(iii) 2x+3y+3z=5
_________
2y + 4z = 2


(iv) 5y + 6z = 5
(v) 2y + 4z = 2
________
Divide the fifth equation by 2
(iv) 5y + 6z = 5
(v) y + 2z = 1
________
Multiple the second equation by -3 and sum the equation
(iv) 5y + 6z = 5
(v) -3y - 6z = -3
________
2y = 2
y = 2/2 = 1


y + 2z = 1
1 + 2z = 1
2z = 1 - 1
2z = 0
z = 0


-2x-y+z=-3
-2x - 1 + 0 = -3
-2x = -3 + 1
-2x = -2
x = -2/-2 = 1



Q2. The answer is x = -37, y = -84, z = -35

<span>(i) x-y-z=-8 
(ii) -4x+4y+5z=7 
(iii) 2x+2z=4
______
</span>Divide the third equation by 2 and rewrite z in the term of x:
(iii) x+z=2
z = 2 - x
______
Substitute z from the third equation and express y in the term of x:
<span>x-y-(2-x)=-8 
x - y - 2 + x = 8
2x - y = 10
y = 2x - 10
______
Substitute z from the third equation and y from the first equation into the second equation:
</span><span>-4x + 4y + 5z = 7 
-4x + 4(2x - 10) + 5(2 - x) = 7
-4x + 8x - 40 + 10 - 5x = 7
-x -30 = 7
-x = 30 + 7
x = -37
y = 2x - 10 = 2*(-37) - 10 = -74 - 10 = -84
z = 2 - x = 2 - 37 = -35</span>
8 0
3 years ago
Other questions:
  • What is 0.0076 km to cm
    11·1 answer
  • Drawing 1/5 the original with a ship 14 inches
    8·1 answer
  • Expanded form 3x(4-9)
    6·1 answer
  • Find the measure of angle t.<br><br><br>Your answer​
    10·2 answers
  • Which pairs of rectangles are similar polygon?<br>Choose all answers that are correct.<br><br>​
    8·1 answer
  • Suppose n people, n ≥ 3, play "odd person out" to decide who will buy the next round of refreshments. The n people each flip a f
    13·1 answer
  • All ratios equivalent to 5:2.
    14·1 answer
  • - Leona Bahr is paid a commission of 12% on all sales above $7,000 for the week. She is also paid a weekly salary of $380. What
    10·1 answer
  • Solve this!<br><br><img src="https://tex.z-dn.net/?f=%20%5Cboxed%7B%5Crm%5Cint973x%20%2B%20%203%7Bx%7D%5E%7B2%7D%20dx%7D%20" id=
    10·2 answers
  • If the sum of the interior angles of a regular polygon is 1620°, what is the measure of one exterior angle. Round to the nearest
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!