Just replace a with 4 and b with 2 and your equation looks like
3.14 (4×2+4×2)
solve within the parenthesis first
3.14 (8+8)
3.14 (16) =50.24
<span> You refer to a multiple of ten. As a multiple of ten you can just add it to another number easier than a "ones number".</span>
Answer:
y = kx where k>0
Step-by-step explanation:
A direct variation is in the form
y = kx
where k is a numerical positive constant ( i.e. > 0 )
Here in the given equation, 3x + 8 the term 8 represents the weight of the empty bucket.
Its given that the number of marbles is x, and the weight of each marble is same which is 3. So, total weight of marbles is 3x.
Now, if 3x + 8 is the weight of the bucket and marbles, then 8 represents the weight of the empty bucket.