$290, 12.5%, 6 months
1 answer:
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The rule of the <span>geometric sequence is 
a ⇒⇒⇒ </span><span>the first term
r ⇒⇒⇒ </span><span>common ratio
Given: the fourth term </span>(a4) <span>= 121.5 and the common ratio = 3 and n = 4
∴</span><span>
∴ a = 121.5/3³ = 121.5/27 = 4.5
So, T</span><span>he formula for this sequence will be</span><span>
</span>
a ⇒⇒⇒ </span><span>the first term
r ⇒⇒⇒ </span><span>common ratio
Given: the fourth term </span>(a4) <span>= 121.5 and the common ratio = 3 and n = 4
∴</span><span>
∴ a = 121.5/3³ = 121.5/27 = 4.5
So, T</span><span>he formula for this sequence will be</span><span>
The wrong step is step 4, because you only need one conversion.
The formula to convers pounds to kilograms is
Obviously, the inverse formula is
So, you're given an input of 142 pounds. To convert it in kilograms, plug that value into out formula:
and this is the answer you're looking for, so you need no more steps.