Answer:
40
Step-by-step explanation:
The number of girls is represented by 3 parts of the ratio.
Divide number of girls by 3 to find value of one part of ratio.
= 5 ← value of 1 part of ratio, thus
5 parts = 5 × 5 = 25 ← number of boys
Total members = 15 + 25 = 40
Answer:
Step-by-step explanation:
We can use the definition of inverse functions. Recall that if two functions, <em>f</em> and <em>g</em> are inverses, then:
So, we can let <em>j</em> be the inverse function of <em>h</em>.
Function <em>h</em> is given by:
Find its inverse. Flip variables:
Solve for <em>y. </em>Add:
Hence:
Therefore, <em>a</em> = 1/3 and <em>b</em> = 2/3.
We can verify our solution:
And: