He bought 5 science books and 2 Math Books
5 Science Books = $300
2 Science Books = $100
7 Books = 400
Answer:
x=-1 and y=4
Step-by-step explanation:
y=-3x+1
2x+5y=18
Put x and y on the same side for 1st equation
3x+y=1
2x+5y=18
Multiply top by -5
-15x-5y=-5
2x+5y=18
Add both equations onto each other
-13x=13
x=-1
Plug x=1 into any equation used
2(-1)+5y=18
-2+5y=18
5y=20
y=4
Answer: 2/8, 2/6, 2/3
Step-by-step explanation:
First, find the LCM of 3, 6, and 8, in this case 24. Then, make the denominator of each fraction 24: 16/24, 6/24, 8/24. Then, simply sort the fractions from least to greatest by their numerators: 6/24, 8/24, 16/24
Hope it helps <3
when trying to find the slope of two given points use the formula m= y2 -y1/ x2-x1
so this is how you'd solve the equation:
y2= 2 y1= 0 x2= 3 x1= -3
the equation would be:
M=2-0/3+3
M= 2/6
M= 1/3
6(3m + -5n + 7)
Distribute the 6.
6*3m + 6*-5n + 6*7
Simplify each individual term.
18m -30n + 42
