britney just got a new video game for her birthday. yesterday, she played for 27 minutes and beat 3 levels…
britney just got a new video game for her birthday. yesterday, she played for 27 minutes and beat 3 levels. today, her parents said she can play for 45 minutes. if she beats levels at the same rate, how many levels should britney beat today? levels
Answer
Explanation:
Step1: Calculate the rate
First, find the rate of levels per minute. She beat 3 levels in 27 minutes, so the rate $r=\frac{3}{27}=\frac{1}{9}$ levels per minute.
Step2: Calculate levels for today
Today she can play for 45 minutes. Multiply the rate by the time today. The number of levels $n = r\times45$. Substitute $r=\frac{1}{9}$ into the formula, we get $n=\frac{1}{9}\times45 = 5$.
Answer:
5