I think C would equal 15, because 14 + 14 = 28; 15 + 15 = 30 which is greater than 28.
Answer:
c
Step-by-step explanation:
Answer:
x= -20, y= 10
Step-by-step explanation:
Label the two equations:
-7x -10y= 40 -----(1)
x= -2y -----(2)
Substitute (2) into (1):
-7(-2y) -10y= 40
Expand:
14y -10y= 40
Simplify:
4y= 40
Divide both sides by 4:
y= 40 ÷4
y= 10
Substitute y= 10 into (2):
x= -2y
x= -2(10)
x= -20
Answer:
7 / 10 < 11 / 12
Step-by-step explanation:
cross multiply
1.5 hours = 90 minutes.
So a ratio of 18:90 is the same as 1:5 since both numbers have a GCF of 18.
