Todd has 2 frogs. This is 1/3 the number of frogs that Heather has. How many frogs does Heather have?
2 answers:
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Answer:
x=2
Step-by-step explanation:
To solve this expression we need to isolate x.
This means since x is currently beng squared, we need to do the inverse to it
This means we need to find the square root.
So we root both sides of the equation.
root x^22=x
root 60 is
which is
or 2
Therefore, x=2
Answer:
12 years
Step-by-step explanation:
Simple interest formula:
where
I = interest,
P = principal,
r = rate (as decimal),
t = time
In your case,
P = $616
I = $1,007.78 - $616 = $391.78
r = 0.053
t - unknown, so