a certain chemical has a half-life of 3 days. if 750 ounces are intially used and 100 ounces are remaining, how many days have passed?

c.35

step-by-step explanation:

8+13=21

21+8=29

29+6=35

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

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