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-BARSIC- [3]
3 years ago
12

Mike hiked to a lake in 5.5 hours at an average rate of 2 1/5 miles per hour. Pedro hiked the same distance at a rate of 2 3/5 m

iles per hour. How long did it take Pedro to reach the lake?Round to the hundredth place. It took Pedro ____ hours to reach the lake.
Mathematics
1 answer:
Leni [432]3 years ago
6 0

Answer:

3.5 hours*3.25 mph=11.375 miles

11.375 miles/3.45 mi/hr=3.297 hours or 3.30 hours, about 12 minutes faster.

Step-by-step explanation:

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Step-by-step explanation:

5 0
3 years ago
A race car driver won a 300 mile race with a speed of 194 miles per hour. Find the drivers time.
agasfer [191]
Time = distance / speed

time = 300/194
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8 0
3 years ago
What is the value of the expression “three less than the quotient of ten and a number, increased by six” when n = 2?
alisha [4.7K]

Answer:

8

Step-by-step explanation:

The given expression is "three less than the quotient of ten and a number, increased by six”

The quotient of ten and a number increased by six is translated into mathematical expression as:

\frac{10}{n}+6

Three less than the quotient of ten and a number, increased by six is

(\frac{10}{n}+6)-3

When we substitute n=2, we get:

(\frac{10}{2}+6)-3

Divide to get:

(5+6)-3

Add to get:

11-3

Subtract

8

4 0
3 years ago
2. What is the effective annual rate of an investment that pays 6% for 5 years, compounded semiannually?
Ede4ka [16]

Answer:

effective annual rate is 6.16 %

Step-by-step explanation:

given data

rate = 6 % = 0.06

time 5 year = 10 semi annually

to find out

effective annual rate

solution

we know formula for annual effective rate of interest is

rate of  interest = (1+ r/n)^{n} -1

put here all value

rate of interest = (1+ 0.06/10)^{10} -1

rate of  interest = (1+ 0.06/10)^{10} -1

rate of interest = 0.061646

so effective annual rate is 6.16 %

8 0
3 years ago
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