A bus takes 195 minutes to travel a distance of (2 x +30) km at an average speed of ( x-20) km/hr. calculate the actual distance travelled. Give your answer in kilometers.
Distance=Speed×Time
2x+30= (x-20)(195÷60)
2x+30=(x-20)×3.25
2x+30=3.25x - 65
2x-3.25x=-65-30
-1.25x=-95
x=76
Distance=2x+30
=(2×76)+30
=182km Ans.
Biokenya answered the question on December 9, 2017 at 19:16
- State three disadvantages of secondary data in statistics(Solved)
State three disadvantages of secondary data in statistics
Date posted: December 4, 2017. Answers (1)
- State three types of correlation in statistics.(Solved)
State three types of correlation in statistics.
Date posted: December 3, 2017. Answers (1)
- State two major methods of measuring correlation(Solved)
State two major methods of measuring correlation.
Date posted: December 3, 2017. Answers (1)
- Define correlation in mathematics.(Solved)
Define correlation in mathematics.
Date posted: December 3, 2017. Answers (1)
- State three properties of standard deviation.(Solved)
State three properties of standard deviation.
Date posted: December 2, 2017. Answers (1)
- Solve for x: cos 3x = sin 6x(Solved)
This is under trigonometry
Date posted: November 21, 2017. Answers (1)
- Kipkemboi running at 10m/s starts 5 m ahead of Mutola who is running at 12m/s. How far from Kipkemboi's
starting point does Mutola overtake him?...(Solved)
Kipkemboi running at 10m/s starts 5 m ahead of Mutola who is running at 12m/s. How far from Kipkemboi's
starting point does Mutola overtake him?
Date posted: November 21, 2017. Answers (1)
- Nafula broke three beakers and 4 test tubes and Munyao broke two beakers and 5 test tubes during practicals in the laboratory. If Nafula was...(Solved)
Nafula broke three beakers and 4 test tubes and Munyao broke two beakers and 5 test tubes during practicals in the laboratory. If Nafula was charged Sh 560 and Munyao Sh 490 for the breakages, find the cost of one beaker and one test tube.
Date posted: November 20, 2017. Answers (1)
- Use tables of logarithms to evaluate. (Solved)
Use tables of logarithms to evaluate.
$\frac{4.28 \times 0.01677}{tan 20^o}$
Date posted: November 20, 2017. Answers (1)
- Find dy/dx,let y=x^2+3. ...(Solved)
Find dy/dx,let y=x^2+3.
Date posted: November 18, 2017. Answers (1)
- Define the following terms as used in real analysis..1.a set,2.cardinality ,3.null sets, 4.equal sets(Solved)
Define the following terms as used in real analysis..1.a set,2.cardinality ,3.null sets, 4.equal sets
Date posted: November 18, 2017. Answers (1)
- What are real numbers (Solved)
What are real numbers
Date posted: November 18, 2017. Answers (1)
- Find the perimeter of a square lawn whose area is 81 cm^2(Solved)
Find the perimeter of a square lawn whose area is 81 cm^2
Date posted: November 17, 2017. Answers (1)
- If theta lies between 0 and 360 and sin theta = 0.5, find the two possible values of theta(Solved)
If theta lies between 0 and 360 and sin theta = 0.5, find the two possible values of theta.
Date posted: November 16, 2017. Answers (1)
- Truncate the following to three decimal places.
a. 1/3
b. 21.47321
c. 523.7946
d. 0.0007678
(Solved)
Truncate the following to three decimal places.
a. 1/3
b. 21.47321
c. 523.7946
d. 0.0007678
Date posted: November 16, 2017. Answers (1)
- Form the quadratic equations whose roots are:
a. -2 and 3
b. -7 and 11
(Solved)
Form the quadratic equations whose roots are:
a. -2 and 3
b. -7 and 11
Date posted: November 16, 2017. Answers (1)
- The initial cost of a ranch is 50 000 000. At the end of each year, the land increase by 2%. What will...(Solved)
The initial cost of a ranch is 50 000 000. At the end of each year, the land increase by 2%. What will be the value of ranch at the end of 3 years?
Date posted: November 16, 2017. Answers (1)
- A minibus cost sh 4000000. Due to wear and tear, it depreciated in value by 2% every month. Find its value after one year.(Solved)
A minibus cost sh 4000000. Due to wear and tear, it depreciated in value by 2% every month. Find its value after one year.
Date posted: November 16, 2017. Answers (1)
- An iron box costs sh. 5000. Every years it depreciated by 10% of its value at the beginning of that year. What will its...(Solved)
An iron box costs sh. 5000. Every years it depreciated by 10% of its value at the beginning of that year. What will its value be after 4 years?
Date posted: November 16, 2017. Answers (1)
- Find the rate per annum at which a certain amount of money triples after being invested for a period of 5 years compounded annually.(Solved)
Find the rate per annum at which a certain amount of money triples after being invested for a period of 5 years compounded annually.
Date posted: November 16, 2017. Answers (1)