Question

Last year there

were 620 7th grade
students. This year
enrollment has
increased by 105%.
How many 7th
grade students are
there this year?

Answer 1

Answer: 1271

Explanation:

620 + (105% × 620) =

620 + 105% × 620 =

(1 + 105%) × 620 =

(100% + 105%) × 620 =

205% × 620 =

205 ÷ 100 × 620 =

205 × 620 ÷ 100 =

127,100 ÷ 100 =

1,271