Answer:
Find the length of the diameter and the length of the circumference of the circle. Divide the length of the circumference by the length of the diameter. Set up an equation showing the ratio of the circumference to the diameter equal to π . Then rearrange the equation by solving it for the circumference. Substitute 2 times the radius for the diameter.
Answer:
30 revolutions
Step-by-step explanation:
to calculate the revolution of the wheels in 66 metres we need to get the circumference
circumference = 2πr, r = radius (diameter divided by 2) but from the formula of circumference we ca rewrite it as πd= 3.14 x 70 = 219.8cm
next convert 66 metres to cm
100cm = 1m
x= 66m
cross multiply
x= 66m x100cm/1m= 6600cm
revolutions in 66metres = 6600cm/219.8cm = 30.0272975 ≅30 revolutions
Answer:
(19+7)÷2-5
Step-by-step explanation:
you need to add 19 and 7 together first to get 8 then go in order of operations
Answer:
-1x + 8
Step-by-step explanation:
Since you did not give any multiple choice options, here is a problem that is equivalent, because I divided the whole problem by 3, making it exactly equal to the other problem in size.
Answer:
intersection point is (4,7)
Step-by-step explanation:
we have the equation y=x+3, and the point (4.0),
what point do the two lines intersect?
y=x+3, if x=4 then y=4+3 = 7; finally the intersection point is (4,7)
