The first graph would be your answer. I hope this helps love! :)
Write and solve an equation of ratios:
15 min 3 racks
---------- = -------------
x 36 racks
Solving this for x: 3x = (15)(36) => x = 180 minutes.
convert this into hours: 180 min 1 hr
------------ * -------------- = 3 hrs (answer)
1 60 min
Let
x = # of <span>$5 dollar bills
y = </span># of <span>$10 dollar bills
x + y = 12 so x = 12 - y
5x + 10y = 95
substitute </span>x = 12 - y into 5x + 10y = 95
5x + 10y = 95
5(12 - y) + 10y = 95
60 - 5y + 10y = 95
5y = 35
y = 7
x = 12 - 7 = 5
answer
# of <span>$5 dollar bills = 5
</span># of $10 dollar bills = 7
-3x + 5y = -9
4x + 8y = 12
Simplify the second,
x + 2y = 3
Times three,
3x + 6y = 9
Add to the first equation,
11y = 0
y = 0
-3x + 5(0) = -9
x = 3
Answer: x=3, y=0
