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MAVERICK [17]
3 years ago
15

Shen started to run on a treadmill after setting its timer for 93 minutes. The display says that he has finished 69% of his run.

How many minutes have gone by?
Round your answer to the nearest tenth.
Mathematics
1 answer:
djverab [1.8K]3 years ago
8 0

Answer:

64.2 minutes

Step-by-step explanation:

We are given that

Shen set timer to run=93 minutes

He has finished his run=69%

We have to find total number of minutes have gone by.

69% of 93

=\frac{69}{100}\times 93

By using

a%=\frac{a}{100}

69% of 93=\frac{6417}{100}

69% of 93=64.17 min

69% of 93\approx 64.2min

Hence, 64.2 minutes have gone by.

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6%=0.06

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Final Answer: 15 tickets are yours.
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Alex

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Step-by-step explanation:

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Find a vector equation and parametric equations for the line through the point (7,4, 5) and parallel to the vector 3i 2j-k .
aleksley [76]

Answer: vector equation r = (7+3t)i + (4+2t)j + (5 - 5t)k

parametric equations: x = 7 + 3t; y = 4 + 2t; z = 5 - 5t

Step-by-step explanation: The vector equation is a line of the form:

r = r_{0} + t.v

where

r_{0} is the position vector;

v is the vector;

For point (7,4,5):

r_{0} = 7i + 4j + 5k

Then, the equation is:

r = 7i + 4j + 5k + t(3i + 2j - k)

<u><em>r = (7 + 3t)</em></u><u><em>i</em></u><u><em> + (4 + 2t)</em></u><u><em>j </em></u><u><em>+ (5 - 5t)</em></u><u><em>k</em></u>

The parametric equations of the line are of the form:

x = x_{0} + at

y = y_{0} + bt

z = z_{0} + ct

So, the parametric equations are:

<em><u>x = 7 + 3t</u></em>

<em><u>y = 4 + 2t</u></em>

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4 0
3 years ago
Fran deposited 4869 into a savings account that pays simple annual interest rate of 3.25% how much interest will she earn after
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Answer:

$395.61

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The formula for simple interest is:

i=Prt

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i is the interest amount

P is the principal amount

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t is the time period

Here,

P = 4869

we want to find after 30 months, that converted to years is:

30/12 = 2.5 years

t = 2.5

The annual rate is 3.25% = 0.0325

Now, substituting, we find our answer:

i=Prt\\i=(4869)(0.0325)(2.5)\\i=395.61

The interest earned is <u>$395.61</u>

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