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Levart [38]
3 years ago
10

You roll a number cube you roll a number greater than 3.find probability of each event write it as a decimal

Mathematics
1 answer:
Jobisdone [24]3 years ago
7 0
The chances of rolling any number over three is 0.5
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A rowing team rowed 90 miles while going with the current in the same amount of time as it took to row 10 miles going against th
pishuonlain [190]

Answer:

The speed in still water is 5 miles per hour.

Step-by-step explanation:

distance with current = 90 miles

distance against current = 10 miles

speed in still water = s

speed of current = 4 mph

speed with current = s + 4

speed against current = s - 4

time = t

speed = distance/time

distance = speed * time

With current:

90 = (s + 4) * t

Against the current:

10 = (s - 4) * t

We have a system of equations:

90 = (s + 4) * t

10 = (s - 4) * t

90 = ts + 4t

10 = ts - 4t

Subtract the second equation from the first equation.

80 = 8t

10 = t

t = 10

10 = t(s - 4)

10 = 10(s - 4)

1 = s - 4

s = 5

Answer: The speed in still water is 5 miles per hour.

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3 years ago
PLEASE HELP QUICK i dont need work to be shown
andre [41]

Answer:

Step-by-step explanation:

7 0
3 years ago
BRAINLIEST FOR BEST ANSWER ** What is the degree number of Z?
irinina [24]

Answer:

the answer is D. 147 degrees

Step-by-step explanation:

114+33=147

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Solve how much the salesperson makes in option A and use that value as the 5% of the total of sales to solve for option B

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3. A family is tracking its spending habits. Over the past year, the grocery bill has ranged from $110 to $170. Suppose you were
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You would plot them by month, 170-110= 60 dollar increase. 60 divided by 12 ( for each month) leaves a 5 dollar increase each month. Your coordinates would be 0,110 1,115 2,120 3,125
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