Answer:
b = 33.546.
Step-by-step explanation:
a + b + c = 77 (1)
a - 5 = b + 5 (2)
a = 5c (3)
from equation 2:
a - b = 10
Adding this equation to equation 1:
2a + c = 87
But a = 5c so
10c + c = 87
c = 87/11 = 7.909
and a = 5*7.909 = 35.545.
b = 77 - 7.909 - 35.545
= 33.546
CThe answer would be in the hundred thousands
Consider the equation for the circumference of a circle, 2πr. Notice that this can also be written as 2rπ.
Recall that the diameter of a circle is equal to twice the radius, or
d = 2r
And make a substitution into the original equation, giving us the circumference c = πd. We know the circumference is 5.2mm; plugging in, we get
5.2 = πd.
Note: π is NOT a variable, it represents a number. Therefore, we can solve the equation for the diameter d = c / π, or
d = 5.2 / π.
I'll let you crunch the number :D
I hope this helps!
Answer:
4 people can go
Step-by-step explanation: