The greatest common factor is 8b. The reason is because both values have a factor of 8 and a factor of b. It is also the largest number.
See photo below
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Write down the size of angle ABC. Give a reason for your answer.
2 answers:
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Answer:
Malcom's maximum speed = 200 km/h
Ravi's maximum speed = 320 km/h
Step-by-step explanation:
Let m = Malcom's maximum speed
Let r = Ravi's maximum speed
Average of their maximum speed would be represented as
.
Make m the subject of the formula by subtracting r from both sides:
. Let this be equation 1.
Given that Malcom's speed (m), when doubled is 80 km/h more than that of Ravi (r). This can be expressed as: . This is equation 2.
Plug in (520 - r) into equation 2 to replace m:
Solve for r. Subtract 1040 from both sides:
Subtract r from both sides
Divide both sides by -3
To find m, plug in the value of r into equation 1.
. =>Equation 1
.
Malcom's maximum speed = m = 200 km/h
Ravi's maximum speed = r = 320 km/h