You can solve for y in the first equation
y = 4x + 7
Plug 4x + 7 instead of y in the second equation
2(4x + 7) + 4x = 2
Solve for x
x = -1
Plug -1 for x
y - 4 * -1 = 7
y = 3
Solution: (-1, 3)
Answer:
B
Step-by-step explanation:
In this case, we use variables to represent the the cost of the big and the smaller boxes. Let x be the selling price of the big boxes while y be the selling price of the bigger boxes.
The total selling price of the smaller boxes is 20x. The total selling price of the bigger ones is 12y.
Now we know he is making a profit of $1,300
Hence in equation form, all the information above can be represented as:
20x + 12y = 1,300
Answer:
red cuz its an odd number so every even number row is blue
Step-by-step explanation:
Original Price: $29.99
Mark down: 33 1/3%
Mark down Price: $20.00
29.99 * 33 1/3 = 29.99 * 0.3333 = 9.99 value of mark down.
29.99 - 9.99 = 20.00 new price.
The problem is not really clear. We can assume that $29.99 is the mark down price. We need to look for the original price.
Mark down price: $29.99
Mark down rate : 33 1/3%
Original Price : $44.98
29.99 / ((100% - 33 1/3%) / 100%) = 29.99 / ( 66 2/3% / 100%)
29.99 / 0.6667 = 44.98
The 3 in 350 is in the hundred place and in 403 the 3 is in the ones place