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jolli1 [7]
4 years ago
9

Baily is training to run a marathon. The number of minutes it takes to run the marathon after t weeks of training is M= 300(0.95

)T. What do the numbers 300 and 0.05 represent
Mathematics
1 answer:
Whitepunk [10]4 years ago
3 0

Answer:

300=initial time and 0.05 is the amount of time shaved off of the initial time to run the marathon

Step-by-step explanation:

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Two number cubes are rolled sequentially. What is the probability that the first number cube shows a Four and the second number
galben [10]

Answer:

\frac{1}{12}

Step-by-step explanation:

<h2>This is an independent event probability problem , that is the first event does not affect the occurrence of the second event.</h2>

The sample space of the first die is S1= {1,2,3,4,5,6}

The sample space of the second die is S2= {1,2,3,4,5,6}

1. the probability that the first number cube shows a Four  pr (4)= \frac{1}{6}

2. the probability that the second number cube shows an odd number=

odd numbers in the sample space are 1,3,5= 3

pr(odd) = \frac{3}{6} = \frac{1}{2}

For the two event to happen the probability is = \frac{1}{6}*\frac{1}{2}=\frac{1}{12}

4 0
3 years ago
If a coin has been altered so that the probability of heads coming up is 3/10, then the probability of tails coming up is also 3
soldier1979 [14.2K]
False. In a coin, there are 2 possible out comes i.e. a head and a tail. if p is the probability of one side coming up, then the probability of the other side comin up will be q = 1 - p.

Therefore, if the probability of head coming up is 3/10, the probability of tail coming up will be 1 - 3/10 = 7/10.
8 0
3 years ago
Perform the indicated operation. 1 3/4 · 7/3? a.3/4 b.41/12 c.121/12 d.23/4
castortr0y [4]

Answer:

\huge\boxed{b.\ 4\dfrac{1}{12}}

Step-by-step explanation:

1\dfrac{3}{4}\cdot\dfrac{7}{3}

convert the mixed number to the improper fraction:

1\dfrac{3}{4}=\dfrac{1\cdot4+3}{4}=\dfrac{7}{3}

multiply:

=\dfrac{7}{4}\cdot\dfrac{7}{3}=\dfrac{7\cdot7}{3\cdot4}=\dfrac{49}{12}=\dfrac{48+1}{12}=\dfrac{48}{12}+\dfrac{1}{12}=4\dfrac{1}{12}

6 0
3 years ago
Some money was invested at 12% interested for 2 years. If the interest was $21, how much was invested?
astra-53 [7]

Answer:

$87.5 was invested

Step-by-step explanation:

10.5 is 12% of 87.5, so if the money was in the bank for 2 years, we would have to do 10.5*2 which is 21, and that's how much money was gained from the investment.

6 0
3 years ago
A car drives 60 miles per hour. Write an equation to find the number of hours it takes to drive 360
stepladder [879]
Distance equals rate times time. 360 is your distance, and 60 is the rate.

7 0
3 years ago
Read 2 more answers
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