Percent is calculation of quantity per 100 quantity of other thing. The percentage of bikes out of of total surveyed vehicles was 13%
Suppose the value of which a thing is expressed in percentage is "a'
Suppose the percent that considered thing is of "a" is b%
Then since percent shows per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then we multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).
Thus, that thing in number is
Assume that total T number of vehicles were surveyed.
Then, as it is given that 70% of the vehicles were cars and 17% were buses.
So, number of cars =
Similarly, the number of buses =
Thus, number of bikes = Total vehicles - number of cars and buses
Number of bikes = T - 0.7T - 0.17T = T(1 - 0.87) = 0.13T
Taking its percentage with total vehicles, let it be x% of total vehicles, then
(we could have used short cut that total there is 100%, since number of cars = 70% of total, number of buses = 17% of total, thus
total vehicle's percent being bike = all vehicle (100%) - percent of cars - percent of buses) = (100 - 70 -17)% = 13% )
Thus, the percentage of bikes out of of total surveyed vehicles was 13%
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Answer:
13%
Step-by-step explanation:
There are three groups: bikes, buses, and cars. The percentages of each must add up to 100%.
bikes + buses + cars = 100%
bikes + 17% + 70% = 100%
bikes + 87% = 100%
bikes = 13%
What is the probability that she selects an orange or a pear?
Answer: The probability that she selects an orange or a pear is 7/16.
Step-by-step explanation:
Given number of oranges = 4,
Apples = 9,
Pears = 3,
Total number of fruits = 4 + 9 + 3 = 16,
If she selects a piece of fruit from the box at random,
Then, the probability that she selects an orange or a pear
= The probability of oranges + The probability of oranges
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Answer:
X = 80
Step-by-step explanation:
Subtract "5" from both sides,
3x + 5 - 5 = 245 - 5
Simplify,
3x = 240
Divide both sides by "3",
3x/3 = 240/3
X = 80
Hope this helps :-)