Answer: 4/3 hours or 1 1/3 hours
Step-by-step explanation:
From the question, we are told that two mechanics, Martin and Gordon, are working on your car. Martin can complete the work in 4 hours, while Gordon can complete the work in 2 hours.
Since Martin can complete the work in 4 hours, that means in 1 hour, he will do 1/4 of the work.
Since Gordon can complete the work in 2 hours, that means in 1 hour, he'll do 1/2 of the job.
When they both work together, we will add their fraction of work done in one hour together. This will be:
= 1/4 + 1/2
= 3/4
This means that both of them will do 3/4 of the job in one hour. Then to get the time taken to get the whole job done, we divide 1 by 3/4. This will be:
= 1 ÷ 3/4
= 1 × 4/3
= 4/3 hours
= 1 hour 20 minutes.
In one
Height of cone in term of volume is 3V / πr²
<u>Given that;</u>
Volume of cone = (1/3)(πr²h)
<u>Find:</u>
Height of cone
<u>Computation:</u>
We know that;
Volume of cone = (1/3)(πr²h)
We have to calculate height from above given formula.
V = (1/3)(πr²h)
3V = πr²h
3V / πr² = h
So,
Height of cone = 3V / πr²
<em>Height of cone</em> in term of volume = 3V / πr²
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Answer:
B
Step-by-step explanation:
Answer:
26/5 or 5 1/5
Step-by-step explanation:
First convert 2 3/5 into an improper fraction: 13/5.
Then multiply this result by 2: 2(13/5) = 26/5. This is the answer as an improper fraction.
26/5 as a mixed number would be 5 1/5.
The value of x will be2.217 and PR will be 13.085 units.
<h3>What is a line segment?</h3>
A line section that can connect two places is referred to as a segment.
In other words, a line segment is just part of a big line that is straight and going unlimited in both directions.
The line is here! It extends endlessly in both directions and has no beginning or conclusion.
Given that,
Line PQ consists of two segments PR and RQ
So,
PQ = PR + RQ
17 = 5x+2 + x² - 1
x² + 5x - 16 = 0
The roots of the equation will be
x = [-5 + √(25 + 64) ] ÷ 2
x = 2.217
Now,
PR = 5(2.217) + 2 = 13.085
Hence "The value of x will be2.217 and PR will be 13.085 units".
For more about line segment,
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