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loris [4]
3 years ago
15

12 3/5 x 30 = tyyyyyy

Mathematics
2 answers:
zheka24 [161]3 years ago
8 0

Answer:

378 is the answers it's not hard

Tasya [4]3 years ago
4 0

12 3/5 x 30 = 378

Can I get brainliest?

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If 3a + 2b = 7 and 2a + 2b = 9 , what is the value of
Simora [160]
Hey there :)

We have two equations:
3a + 2b = 7 
2a + 2b = 9

We need to solve simultaneously to find the values of a and b

eq.1    3a + 2b = 7
eq.2 ( 2a + 2b = 9 ) x -1  ) multiply by -1 to cancel 2b

  3a + 2b = 7
- 2a - 2b = -9         ( Add both together )
-------------------
   a = - 2 

Substitute the value you found for a in a in order to find b

3( - 2 ) + 2b = 7                                                     2( - 2 ) + 2b = 9 
- 6 + 2b = 7                                    OR                  - 4 + 2b = 9
2b = 13                                                                   2b = 13        
b = \frac{13}{2}                                                                 b = \frac{13}{2} 

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3 years ago
Shirley picked out a kite for $3.50. If she gave the family a ten dollar bill, what is the fewest number of bills and coins that
Aleonysh [2.5K]

Answer:

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Step-by-step explanation:

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Answer:

This is because the number '20' is not a perfect square.

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