Hello,
I suppose equations are:
x+y=3 (1)
x+2y=9 (2)
(2)-(1)==>y=6
(1)==>x=3-6
x=-3, y=6
Sol={(-3,6)}
Answer:
500 miles
Step-by-step explanation:
81-11 is 70. 70 divided by .14 is 500 so that's 500 miles she can bike.
Answer:
i think 10
Step-by-step explanation:
It is 4 wholes 5/16. when you divide 69 by 16 it gives you 4 remainder 5
Answer:
Amy's yearly salary in 2011 was $27,800
Step-by-step explanation:
we have

where
x ---> is the number of years since 2007
y ---> Amy's yearly salary in dollars
To find out what was her salary in 2011, first determine the value of x

substitute the value of x in the equation above


therefore
Amy's yearly salary in 2011 was $27,800