Answer:
x = 3.75
y= 0.5
Step-by-step explanation:
2x and 3y and 6
2x and y and 7
the difference between those two is 2y and 1
because 3y-y = 2y and 7-6 = 1
2y=1 y = 0.5
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2x - 3 = 6 is also 6 + 3y = 2x
3(0.5) = 1.5
6 + 1.5 = 75.5
2x = 7.5
x= 3.75
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
check:
2(3.75) = 7.5
3(0.5) = 1.5
7.5-1.5 = 6
2(3.75) = 7.5
y= (0.5)
7.5-0.5= 7
C= number of acres of corn
W= number of acres of wheat
total is 180 acres
c+w=180
want to plant 3 times as many corn as wheat
c=3w
substitute 3w for c in other
ctw=180
3w+w=180
4w=180
divide both sides by 4
subtract
c=3w
c=3(45)
c=135
135 acres of corn and 45 acres of wheat
Answer:
Step-by-step explanation: