sarah made a necklace using 5 times as many blue beads as white beads. she used a total of 30 beads. how many blue beads did sarah use?

Question

sarah made a necklace using 5 times as many blue beads as white beads. she used a total of 30 beads. how many blue beads did sarah use?

Answer 1

First, let's set up what we know:

5w = b (because there are five times as many blue as white used)

w + b = 30

 

Since we have a value for b, we can put it into the equation:

w + 5w = 30

Simplify:

6w = 30

Now to isolate w:

6w / 6 = 30 / 6

w = 5

 

So five white beads. Now to use that to figure out the number of blue beads:

5 * 5 = 25

25 blue beads.

 

Now to put this into our equation to check our answer:

25 + 5 = 30

30 = 30