The correct answer is A.6
1) x+y = 170
x-y = 26
2) Subtract the two equations from each other. Doing this you get 2y = 56.
So the value of y is 28. Then plug in the value of y into any of the two equations and solve for x.
x-28 = 26
x = 54
3) When writing solutions as an ordered pair, the x value always comes first followed by the y value. So it would be (54, 28).
Answer:
110beats/minutes
Step-by-step explanation:
we know we have 11 beats every 6 seconds,
that implies that there are 110 beats every 60seconds
and 60secs is a minute
that means 110beats/mins