Answer:
9.78083151 irrational
Step-by-step explanation:
Here, we want to sum 2/5 + √(88) and check if it is rational or irrational
2/5 = 0.4
√88 = 2 √22
So 0.4 + 2 √22
So what we want to do here is add a rational number to an irrational number. Kindly recall that surds are irrational numbers.
Mathematically, adding a rational number to an irrational one gives an irrational result
so we have;
9.780831519647 irrational
Let S = number of small yogurts ($2 each).
Let M = number of medium yogurts ($3 each)
Let L = number of large yogurts ($5 each)
Total yogurts is 27, therefore
S + M + L = 27
Total revenue generated is $98, therefore
2S + 3M +5L = 98
There are five more large yogurts than small yogurts, therefore
L = S + 5, or
-S + L = 5
These three equations may be written as the matrix equation
[ 1 1 1 | |S| |27|
| 2 3 5 | |M| = |98|
| -1 0 1 | |L| | 5|
The determinant of the matrix is
D = 3 - (2+5) + 3 = -1.
Solve with Cramer's Rule to obtain
S = -[27*3) - (98-25) - 15]
= 7
M = -[(98-25) - 27(2+5) + (10+98)]
= 8
L = -[15 - (10+98) + 27(3)]
= 12
Answer: 7 small, 8 medium, 12 large yogurts.
Answer:
Misty is 7
Step-by-step explanation:
84=7*12
12-7= 5 year difference
≈ 0.00020