or
  • Justine
  • has
  • $80
  • in
  • a
  • savings
  • account.
  • The
  • interest
  • rate
  • is
  • 5
  • %
  • per
  • year
  • and
  • is
  • not
  • compounded.
  • How
  • much
  • interest
  • will
  • she
  • earn
  • in
  • 1
  • year?


Use the formula i = prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.

$
ref_doc_title.

Confetti

Jumping to level 1 of 1

Excellent!

Now entering the Challenge Zone—are you ready?

Teacher tools
Work it out
Not feeling ready yet? These can help:
Skill IconV.4Percents of numbers and money amounts
Skill IconCC.5Find a value using two-variable equations
Skill IconCC.7Multiply a decimal by a multi-digit whole number
Skill IconY.3Convert mixed numbers to decimals