4. A plant grows during the first month after it is planted. During the second month it grows by half the height it had already reached. During the third month it grows by one third of the
height it had re shed at the end of the second month. It then grows by one quarter and one
fifth of the height reached in the same way in the next two months.
(a) If a plant is 1 metre tall at the end of the first month,
how tall will it be after five months?
4a
m
(b) If a plant grows 90 cm in the third month,
how tall was it after one month?
4b
cm​

m∠vru = 80°

m∠urw = 15°

step-by-step explanation:

answer: given that the roller coaster can accommodate 1600 riders per hour, thus the roller coaster can accomodate 1600 / 60 = 26.67 riders per minute.

given that there are 345 people in the line, the number of minutes it will take for the 345 persons to get into the roller coaster is given by 345 / 26.67 = 12.94 minutes.

therefore, it will take you 12.94 minutes to get to the front of the line.

step-by-step explanation:

you'll just earn points here

step-by-step explanation:

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like: