Question

find the unknown value. enter the correct answer in the box. show hints 40% of 72 = \square

Explanation:

Step1: Convert percentage to decimal

To find 40% of 72, first convert 40% to a decimal. We know that \( 40\% = \frac{40}{100}=0.4 \).

Step2: Multiply the decimal by 72

Now, multiply this decimal by 72. So, \( 0.4\times72 = 28.8 \). Wait, but looking at the number pad (7,8,4,5,1,2,0), maybe we need to do it as a fraction? Let's try another way. 40% is also \( \frac{40}{100}=\frac{2}{5} \). Then \( \frac{2}{5}\times72=\frac{144}{5} = 28.8 \). But maybe the problem expects an integer? Wait, no, 40% of 72: 720.4. Let's calculate 720.4: 720.4 = (700.4)+(20.4)=28 + 0.8 = 28.8. But the number pad has 2,8, etc. Wait, maybe I made a mistake? Wait, 40% of 72: 7240/100 = (7240)/100 = 2880/100 = 28.8. But maybe the problem is designed to have an integer? Wait, no, 40% of 72 is 28.8. But the number pad has digits 7,8,4,5,1,2,0. So 28.8, but maybe we need to input 28.8? But the box is for a number. Wait, maybe the question is 40% of 72, let's check again. 720.4: 720.4. 0.470=28, 0.42=0.8, so 28.8. So the answer is 28.8. But using the number pad, we can input 2,8,.,8? But the number pad has 2,8, etc. Wait, maybe the problem is 40% of 70? No, it's 72. Wait, maybe I miscalculated. Wait, 7240%: 40% of 72. Let's do 72 divided by 100 is 0.72, times 40: 0.72*40=28.8. Yes, that's correct. So the answer is 28.8. But the number pad has 2,8,.,8? Wait, the number pad shows 7,8,4,5,1,2,0. So to input 28.8, we can press 2,8,.,8? But maybe the problem expects an integer? Wait, no, 40% of 72 is 28.8. So the answer is 28.8.

Wait, maybe the question is 40% of 72, and the number pad is for input. So the correct calculation is 72 * 0.4 = 28.8. So the answer is 28.8.

Answer:

28.8