Answer:
The hidden variable is age.
Step-by-step explanation:
That does not prove that larger shoes cause more studying math or vice versa.
The children with larger shoes are most probably older so they would have done more years of studying than the younger ones.
The hidden variable is the age of the child.
Answer:
30 waiters
Step-by-step explanation:
the ratio of 5 waiters to 2 cooks
you are given the total number of waiters and cooks = 42
write equation
x (5 + 2) = 42
7x = 42
x = 6
now distribute the x into waiters which is 5x or 5(6) = 30 waiters
additionally 2x is for cooks or 2(6) = 12 cooks; which adds up to 42
Answer:
Every whole number is a rational number: for example, 3=31. So it is rational. Every whole number n can be written as a fraction of integers: n=n1. We aren't required to write it that way; we just need to know that it is possible to express every whole number as a fraction of integers, and hence it is rational.
Step-by-step explanation:
hope this helps