Word problem: 40% of the Ipads have built-in wifi. If there are 400 Ipads, how many have built-in wifi?

160 iPads with built in WiFi.

Step-by-step explanation:

10% of 400 = 40, now times by 4.

1. is 4 and 2. is 3

step-by-step explanation:

so if you look at the first one you see that 1 is to 4 and 2 is to 8 and so on, so you can see for every 1 there is a times 4 so if it were 3 then it would be 3*4 and it is 12

for number 2 it is 3 because 1 is to 3 and 2 is to 6 so for every 1 there is 3 so if it were 3 then there would be 3*3 = 9

honesty mood

step-by-step explanation: