So 5+x=47
subtract 5 from both sides
x=42
not 52
the answer is 42
815.755 round to the nearest hundred is 816
Answer:
x (children) = 58
y (students) = 66
z (adults) = 29
Step-by-step explanation:
Step 1: Write system of equations
x + y + z = 153
5x + 7y + 12z = 1100
1/2x = z
The best way to solve the systems of equations is to use an augmented matrix:
Top row: [1 1 1 | 153]
Middle row: [5 7 12 | 1100]
Bottom row: [1/2 0 -1 | 0]
And then put it in RREF form:
Top row: [1 0 0 | 58]
Middle row: [0 1 0 | 66]
Bottom row: [0 0 1 | 29]
There are 16 ounces in a pound, so you would multiply 16 and 3 to get your answer.
Answer: 630
Step-by-step explanation:
Accepts: 4/9
x times 4/9 = 280
x = 630
