Evaluate the numerical expression. 2/ 3 − (− 1/ 6 )
1 answer:
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Answer:
y = 25
Step-by-step explanation:
Given that the quantities are proportional then the equation relating them is
y = kx ← k is the constant of proportion
To find k use the condition y = 10 when x = 6
k = =
=
y = x ← equation of proportion
When x = 15, then
y = × 15 = 5 × 5 = 25
You simply need to subtract x from both sides:
In fact solving an equation for a variable means to isolate that variable on one side of the equation, and moving all remaining terms on the other side.
In this case, we solved the equation for y, because we wrote it as