Given that y and x are directly proportional and
y=22 when x=6, find the value of y when x=15.
1 answer:
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.
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242,000
Step-by-step explanation:
Since the 6 in the hundreds place is greater than 5, you round up.
Answer:
720
Step-by-step explanation:
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