I think B should be the top one
Answer: (6 , 3)
Step-by-step explanation: Given
x + 3y =15 ------- equation 1
4x + 2y = 30 --------- equation 2
x = 15 - 3y
Put value of x in equation 2
4 (15 - 3y) + 2y = 30
60 - 12y + 2y = 30
-10y = -30
divide by '-10' on both sides
y = 3
now, put value of y in equation 1
x + 3(3) = 15
x + 9 = 15
x = 15 - 9
x = 6
So , (x , y) = (6 , 3)
Answer:
33/36
Step-by-step explanation:
15 miles * 5280 ft/mile = 79200 ft
1 hour * 60 minutes/hr = 60 minutes
79200ft/ 60 minutes
1320 ft/min