Answer:
y = 55
Step-by-step explanation:
Hi,
Remember: if y and x are directly proportional, you could write a ratio with those values, as follows:
y:x becomes 22:6
You can write an equation with the new value:
y:15 = 22:6
Now solve by cross multiplication. Imagine that those ratios are fractions:
y/15 = 22/6
y*6=15*22
6y=330
y=55
The value of y is 55 when x is 15.
