Answer:
Step-by-step explanation:
we know that 100 cm are equal to 1 meter
there are 4 "groups" of 25 cm in one meter
the worm needs 76 seconds to travel a meter, in case you need to know that
A)
rate of change from A to B = 48-0 / 1-0 = 48/1 = 48 ( feet per second)
rate of change from B to C = 64 -48 / 2-1 = 16 /1 = 16 ( feet per second)
B) the rate from A to B is greater. This tells me gravity starting acting on the rocket and started slowing it down
Answer:
Step-by-step explanation:
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In the question ,
L.H.S. = 
R.H.S. = 
Lets solve L.H.S. first.




∴ L.H.S. = R.H.S. (Proved)
Answer: choice a
Step-by-step explanation:
Set up your variables. For this question lets use x, y, and z.
the equations will be . .
x + y + z = 165
x = 2y - 65
z = y -10
If we now substitude the equations for x and z with the first equation we cans solve for y. Hence the equation will be . . .
2y - 65 + y + y -10 = 165
y = 60
then substitude the equations for x and z with y.
your answer should match choice a.
Answer:
see the attachment photo!