Answer:
- sandwich: $6.30
- burrito: $3.70
Step-by-step explanation:
The two relations can be written in general form using the given variable definitions as ...
5x +7y -57.40 = 0
4x +2y -32.60 = 0
The solution using the cross-multiplication method is ...
d1 = (5)(2) -(4)(7) = 10 -28 = -18
d2 = (7)(-32.60) -(2)(-57.40) = -228.20 +114.80 = -113.40
d3 = (-57.40)(4) -(-32.60)(5) = -229.60 +163 = -66.60
x = d2/d1 = -113.40/-18 = 6.30
y = d3/d1 = -66.60/-18 = 3.70
The cost of 1 sandwich is $6.30.
The cost of 1 burrito is $3.70.
_____
For more about the cross-multiplication method of solving systems of equations, see ...
brainly.com/question/26397343
Rewriting the question, the given lengths that were cut from the board were 30 3/4 inches, 12 1/4 inches, and 16 1/4 inches. To obtain the remaining length of the board, all of the measurements cut are to be added and subtracted from 72 inches. This is shown below:
30 3/4 + 12 1/4 + 16 1/4 = 237/4 = 59.25 inches.
Remaining length of board = 72 - 59.25 = 12.75 inches.
Therefore, there will be 12.75 inches remaining of the board.
Answer:
3/5 = 0.6
1/8 = 0.125
3/50 = 0.06
7/8 = 87.5%
1/3 = 33 1/3%
hope this helped.. brainliest??
Answer:
The greatest number of rows that can be planted, and have nothing left over, would be 3
Step-by-step explanation:
Find the greatest common factor (gcf) of 15 and 9
15: 1 3 5 15
9: 1 3 9
In this case, the gcf of 15 and 9 would be 3.