Its not as easy as it looks! show
. rob’s cat’s age is three times that of his pet lizard. when you add rob’s cat's age to his lizard's age, you get 16. how old is rob’s cat and his lizard?

(a) write an equation that represents rob’s cat’s and lizard’s ages.
(b) solve the equation from part (a). show your work. state your solution as a complete sentence.

Let the age of the lizard be X

then the cats age would be 3X ( three times the lizards age)

A) write the formula:

X + 3X = 16

B) Solve:

x +3x = 16

Combine like terms:

4x = 16

Divide both sides by 4:

x = 4

Lizard age = 4

Cats age = 12

The lizards age is 4 and the cats age would be 3 times 4 which is 12.

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)