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SashulF [63]
3 years ago
9

Why do you need to find common denominators simplify your equation

Mathematics
1 answer:
Daniel [21]3 years ago
4 0
Finding common denominators allows you to more easily get your answer for the problem.  fractions are complex as it is  if you have a denominator of 16 and 4 your immediate reaction would be to just subtract the process and answer would be completely wrong.
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A cube has side length a. The side lengths are decreased to 20% of their original size. Write an expression in simplest form for
sergiy2304 [10]
Volume of the original cube is a³ .
That's (a · a · a) .

If you decrease the sides to 20% of their original size,
then the new volume is  (0.2a · 0.2a × 0.2a).

That's  0.008a³  or  (0.2a)³ . 

Take your choice.  I can't decide which one is simpler.
8 0
3 years ago
Read 2 more answers
What is the answer ​
mrs_skeptik [129]

Answer:

10.56825

Step-by-step explanation:

solution:

4.95×2=9.9

9.9×6.75%=0.66825

0.66825+9.9=10.56825

7 0
3 years ago
Evaluate the expression 4b-6d if b = 7 and d=3
viktelen [127]

Answer:

<em>1</em><em>0</em>

Step-by-step explanation:

4*7 - 6*3

\/ \/

28 - 18

\ /

= 10

3 0
3 years ago
Find the equation of the line that contains the point (3,9) and is parallel to the line y=4x+1. Write the line in slope-intercep
Aleksandr-060686 [28]
Y = 4x + 1....slope here is 4. A parallel line will have the same slope

y = mx + b
slope(m) = 4
(3,9)...x = 3 and y = 9
now we sub and find b, the y int
9 = 4(3) + b
9 = 12 + b
9 - 12 = b
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so ur parallel equation is : y = 4x - 3
5 0
3 years ago
What is the value of y in the equation 3 (3y - 9) = 0
iren [92.7K]

Answer:

y=3

Step-by-step explanation:

3 (3y - 9) = 0

Divide each side by 3

3/3 (3y - 9) = 0/3

3y -9 = 0

Add 9 to each side

3y -9+9 = 0+9

3y =9

Divide by 3

3y/3 = 9/3

y =3

4 0
3 years ago
Read 2 more answers
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