Looking around a farm, the number of chickens is four times the number of pigs. If there are a total of 48 legs between the chic
2 answers:
Answer:
There are 4 pigs on the farm
Step-by-step explanation:
Let x be the number of pigs
We are given that the number of chickens is four times the number of pigs.
Number of chickens = 4x
No. of legs of 1 pig = 4
No. of legs of x pigs = 4x
No. of legs of chicken = 2
No. of legs of 4x chicken = 2(4x)=8x
There are a total of 48 legs between the chickens and the pigs
So,
x=4
Hence There are 4 pigs on the farm
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Step-by-step explanation:
Given that at a self-service gas station, 40% of customers pump regular gas, 35% pump midgrade, and 25% pump premium gas. Of those who pump regular, 30% pay at least $30. Of those who pump midgrade, 50% pay at least $30. And of those who pump premium, 60% pay at least $30.
Regular gas Midgrade Premium gas Total
Percent 40 35 25 100
atleast 30 30% 50% 60%
a) The probability that the next customer pumps premium gas and pays at least $30
=
b) the probability that the next customer pays at least $30
= P(regular and pays atleast 30%)+P(premium and pays atleast 30%)+P(midgrade and pays atleast 30%)
=