Answer:
The answer is 36 adults and 88 children.
Step-by-step explanation:
The two equations are:
x+y=124 and 5x+3y=444
Using substitution method:
5x+3(124+x)=444
5x+372-3x=444
2x=72
x=36
5(36)+3y=444
180+3y=444
3y=264
y=88
Answer:
choosing one card from a deck and then choosing one card from another deck.
Step-by-step explanation:
These two actions are independent of each other. There is the same probability of choosing a card from any of those decks.
Let's say the decks are of 52 cards for example.
If you select one from the first deck , there are still 52 cards on the second.
Having selected from one, did not affect the other.
I hope this helped. I am sorry if you get this wrong.
Answer:
216 animals
Step-by-step explanation:
Let n represent the number of each type of animal.
Since there are two horses for every horse trough, then n must be divisible by 2. Since there are three cows for every cow trough, then n must be divisible by 3. Since there are eight pigs for every pig trough, then n must be divisible by 8. Therefore, n must be divisible by 2, 3 and 8. The smallest number divisible by 2, 3, and 8 is 24. (This number is called the lowest common multiple or LCM, for short.)
If there are 24 of each kind of animal, there would be 24 ÷ 2 = 12 troughs for horses, 24 ÷ 3 = 8 troughs for cows and 24 ÷ 8 = 3 troughs for pigs. This would require a total of 12 + 8 + 3 = 23 troughs. Since there are 69 troughs and
69 ÷ 23 = 3, we require 3 times more of each type of animal. That is, there would be 24 × 3 = 72 of each type of animal. The total number of animals is 72+72+72 or 216.
Therefore, McDonald has 216 animals.
Hope this helps :)
A=1
B= -1
C= 1/4
B^2-4ac
(-1)^2 -4(1)(1/4)
1 -1
0 = 1 solution
I don't know your options, but if one of them is rounding down and not up it'd be incorrect because .86 is above 5 if that makes sense? (:
