Answer:
0.28
Step-by-step explanation:
Let p be the probability of pasta.
Total probability is = 1
Therefore,
0.3 + 0.42 + p = 1
0.72 + p = 1
p = 1 - 0.72
p = 0.28
The probability that it will be pasta is 0.28
Answer:
Step-by-step explanation:
we know that
The compound interest formula is equal to
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
substitute in the formula above
Let x be the amount each friend pays
.
There are five friends contributing ,so
5x will be the total money collected
.
It needs to equal the price plus the tax, 210 + 15
= 225
So the equation becomes,

5x = 225
dividing right side by 5, we have
x = 225/5 = 45
Answer: So each frien pays $45.