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butalik [34]
3 years ago
13

A boy swims 500 yards in 5 minutes and 15 seconds what is his swimming speed in yards per minute to the nearest whole yard

Mathematics
1 answer:
coldgirl [10]3 years ago
6 0
15 seconds =15/60=1/4 min
5min+1/4min=21/4 min
500 yards : 21/4=500*4/21≈95 yards
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3r,.3,.,3.3,.23,.2,.,.32,r
suter [353]

I also think the answer is "3".

7 0
2 years ago
Read 2 more answers
Solving Exponential and Logarithmic Equation In exercise,solve for x or t.See example 5 and 6.
Virty [35]

Answer:

x=\frac{6e^3}{e^3-1}

Step-by-step explanation:

ln x - ln(x - 6) = 3

Apply natural log property

ln mn=ln m + ln(n), ln(m/n)=ln(m)-ln(n)

ln x - ln(x - 6) = 3

ln(\frac{x}{x-6} )=3

All natural log has base 'e'

\frac{x}{x-6} =e^3

cross multiply

x=e^3(x-6)

x=e^3x-6e^3

add 6e^3 on both sides and -x on both sides

6e^3=e^3x-x

6e^3=x(e^3-1)

Divide e^3-1 on both sides

x=\frac{6e^3}{e^3-1}

5 0
3 years ago
F(x)=2x-3 for x =2<br>a.-7<br>b.-1<br>c.1<br>d.4
ELEN [110]
The answer is c. Because insert x=2 into the equation and 2x2=4-3=1 sooo f(x)=1
4 0
3 years ago
In 2016 49% of all degrees granted were bachelors degrees if 1,920,718 students earned bachelors degrees how many total degrees
JulsSmile [24]

Answer:

<h2>3919832.65306</h2>

Step-by-step explanation:

This problem is focused on percentages.

Now given that 49% of a number is  1,920,718

we can say let the number be x

so 49% of x=  1,920,718

now expressing this problem mathematically we have

(49/100)*x=  1,920,718

0.49x= 1,920,718

divide both sides by 0.49 we have

x=  1,920,718/0.49

x= 3919832.65306

Therefore the total that were granted degree that year was 3919832.65306

4 0
3 years ago
A line has a slope of -13. There is a second line that passes through points (-7,-5) and (6,-4) . Would these lines be parallel
Elza [17]
<h3>Answer: The lines are perpendicular</h3>

=================================================

Work Shown:

Use the slope formula to find the slope of the line through the two given points.

m = (y2 - y1)/(x2 - x1)

m = (-4 - (-5))/(6 - (-7))

m = (-4 + 5)/(6 + 7)

m = 1/13

The slope of the line through the two given points is 1/13.

This is not equal to -13, which was the slope of the first line, so the two lines are not parallel.

However, the two lines are perpendicular because multiplying the two slope values leads to -1

(slope1)*(slope2) = (-13)*(1/13) = -1

note: It might help to think of -13 as -13/1 to help multiply the fractions.

3 0
3 years ago
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