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larisa [96]
3 years ago
15

you spent m minutes studying on Monday. On Tuesday, you studied 15 more minutes than you did on Monday. Wednesday, you studied 3

0 minutes less than you did on Tuesday. You studied twice as long on Thursday as you did on Monday. On Friday, you studied 20 minutes less than you did on Thursday. Write an expression in simplest form to represent the number of minutes you studied in all.
Mathematics
1 answer:
Svetllana [295]3 years ago
3 0

monday: m
tuesday: m+15
wednesday: (m+15)-30
thursday: 2m
friday: 2m-20

m+(m+15)+[(m+15)-30]+2m+(2m-20)

7m-20

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Step-by-step explanation:

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3 years ago
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Zina [86]
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2 years ago
Suppose the number of gallons of gasoline per day used by a car is normally distributed with a mean of 2.2 gallons and a standar
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The difference in gallons per day used is 3.6.

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5 0
3 years ago
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7 0
3 years ago
twice the sum of a number and 6 is equal to 3 times the difference of the number and 8. Find the number
Serhud [2]

In order to solve this problem, we must solve an equation.

First, we need to define our unknown.

Let's call our number "n".


So, the sum of the number and 6 is the same as saying n+6

Then we need to multiply it by 2 (since it's twice the sum)

2(n+6)

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The number is 36

5 0
2 years ago
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