7 belts and 5 wallets cost $ 225.Write the equation.
1 answer:
You might be interested in
Answer:
y is also doubled.
Step-by-step explanation:
Direct proportionality between and
means that
or
,
which indicates a linear relationship between and
because they are related by a constant.
Therefore, if x is doubled, then the new value of is
The new value of is 2 times the previous; therefore,
is doubled as
is doubled.