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olga nikolaevna [1]
3 years ago
7

Micah is preparing for a piano recital. He practices for 50 minutes on Monday and 90 minutes on Wednesday. How did the amount of

time spent practicing change from Monday to Wednesday.
Mathematics
1 answer:
MrMuchimi3 years ago
8 0

Answer: He practiced for 40 more minutes.

Step-by-step explanation: Comparing Wendesday's time to Monday's. you subtract 50 from 90, giving you 40.

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Answer: 3/5 = (6/10). There are 10 TOTAL marbles in the bag.

Step-by-step explanation:

Since it is a question of fractions, you can assume any reasonable number and work with the numbers. We know initially that there are 6 marbles and they are ALL blue and the rest are another color or colors. So BLUE = 6/10 and the other colors 4/10 for 2/5.

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Step-by-step explanation:

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Step-by-step explanation:

Given 2 expressions

S1:3x-8y=7

S2:x+2y=-7

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Here I am writing S1 in terms of y

3x-8y=7\\3x-7=8y\\y=\frac{3x-7}{8}

Substitute this value of y as the value of y in S2

⇒x+2y=-7\\x+(\frac{3x-7}{8} )\times2=-7\\8x+6x-14=-56\\14x=-42\\x=-3

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Here i am substituting in S2

⇒x+2y=-7\\-3+2y=-7\\2y=(-7+3)\\2y=-4\\y=-2

Therefore x=-3 and y=-2

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4 years ago
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