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mylen [45]
2 years ago
14

(-1)×(-2)×10=? (this is integers)​

Mathematics
1 answer:
VLD [36.1K]2 years ago
8 0

Answer:the first one

Step-by-step explanation:

i am teacher lol

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Melvin Marshall bought 20 Mothers Day Muffins for Mama-Melanie, Auntie-Marlene, Grandma-Melissa, Cousin Carmela and Sister-Shami
amid [387]

Answer:

The number of  Carmel muffins is 8 and the number of lemon muffins is 12.  

Step-by-step explanation:

Melvin Marshall bought a total of 20 Muffins . Some were camel-glazed muffins and some were lemon. The Carmel muffins cost $3 each while the lemons cost $2.5 . The number of carmel muffins and lemon muffins can be calculated as follows

total number of muffin =  20

Let

a  = number of carmel - glazed muffins

b = number of lemon muffins

a + b = 20.............(i)

The total cost

3a + 2.50b = 54................(ii)

Combine the equations

a + b = 20.............(i)

3a + 2.50b = 54................(ii)

a = 20 - b

insert the value of a in equation (ii)

3(20 - b) + 2.50b = 54

60 - 3b + 2.50b = 54

60 - 54 = 0.5b

0.5b = 6

divide both sides by 0.5

b = 6/0.5

b = 12

Insert the value of b in equation (i)

a + b = 20.............(i)

a + 12 = 20

a = 20 - 12

a = 8

The number of  Carmel muffins is 8 and the number of lemon muffins is 12.  

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3 years ago
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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