Question

Andrew and Thomas collected a total of 190 bugs

for a science project. Andrew collected 10 more
bugs than Thomas. Which number sentence shows
the number of bugs that Andrew collected, b?

Answer 1

b + b - 10 = 190

⇒ 2b - 10 = 190

Explanation:

Let b = number of bugs Andrew collected

⇒ b - 10 = number of bugs Thomas collected

Given total number of bugs = 190

b + b - 10 = 190

To solve:

b + b - 10 = 190

⇒ 2b - 10 = 190

⇒ 2b = 200

⇒ b = 100

Therefore, Andrew colleted 100 bugs and Thomas collected 90 bugs.