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natima [27]
3 years ago
14

How do I know if two ratios are equal to make a proportion

Mathematics
1 answer:
AfilCa [17]3 years ago
3 0
One way to see if two ratios are proportional is to write them as fractions and then reduce them. If the reduced fractions are the same, your ratios are proportional. 
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Plzzzz help due today at 11:59
Romashka [77]

1 ) 3a + b - 4b + 5a

= Solution,

= 3a + 5a +b - 4b

= 8a - 3b

2 ) x + 10x + 2y - 8

= Solution,

= x + 10x + 2y - 8

= 11x + 2y - 8

3 ) 10x² - 4 - 2x²+ x ²

= Solution,

= 10x² - 2x² + x ² - 4

= 9 x² - 4

4 ) 3b + a - b + 2a

= Solution,

= 3b - b + a + 2a

= 2b + 3a

5 ) 6y³ - y³- 2x² + x²

= Solution,

= 6y³ - y³ - 2x² + x²

= 5y³ - x²

6 ) -2y + 2 + 3y + 1

= Solution,

= - 2y + 3y +2 +1

= y + 3

7 ) 1 + 3x + 4x²- 5x + 8

= Solution,

= 1 + 8 + 3x - 5x + 4x²

= 9 - 2x + 4x²

8 ) 12 x + 3y + 6x + y

= Solution,

= 12x + 6x + 3y + y

= 18x + 4y

9 ) - 4a³ + 1 + a³ + 7a²

= Solution,

= -4a³ + a³ + 1 + 7a²

= 3a³ + 1 + 7a²

10 ) -2 + 35b - 8b - 2b

= Solution,

= -2 + 27b - 2b

= -2 + 25b

11) - 2b + 3ab + a + 9ab

= Solution,

=- 2b + 3ab + 9ab + a

= - 2b + 12ab + a

12 ) - x³ + 2x + 2x³ - x + x²

= Solution,

= - x³ + 2x³ + 2x - x + x²

= x³ + x + x²

~Eveloyane~

8 0
2 years ago
I really need help with this?
Natasha2012 [34]

Answer:

88

Step-by-step explanation:

if im wrong please tell me although i did do the problem

8 0
3 years ago
Find the x and y intercepts of 7x - 3y = 42
nlexa [21]

X int equal 6


y int equal -14

7 0
3 years ago
What is the y-intercept of the line whose equation is:
salantis [7]

Answer:

2

Step-by-step explanation:

Use the intercept method.  Where is y when x = 0?

3 0
3 years ago
Please help.................................................................................
ch4aika [34]

Answer:

the answer is D

Step-by-step explanation:

you dont use these (these) you just do it by normal

8 0
4 years ago
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