Answer:
15
Step-by-step explanation:
just took the test. x=5 and the answer to the equation is 15
Answer:
3 3/4 teaspoons
Step-by-step explanation:
Pedro mixes 3/4 teaspoon of plant food into each gallon of water. How many teaspoons of plant food should Pedro mix into 5 gallons of water? To answer this, multiply "3/4 teaspoon per gallon" by 5 gallons:
3 teaspoons
------------------- * 5 gallons = 15/4 teaspoons, or 3 3/4 teaspoons.
4 gallons
If two numbers round to the same number it doesnt always mean they are equal, for example: 11 and 9 both round to ten but they are not the same number
I think that this is a combination problem. From the given, the 8 students are taken 3 at a time. This can be solved through using the formula of combination which is C(n,r) = n!/(n-r)!r!. In this case, n is 8 while r is 3. Hence, upon substitution of the values, we have
C(8,3) = 8!/(8-3)!3!
C(8,3) = 56
There are 56 3-person teams that can be formed from the 8 students.
