If the sides of a square are increased by 4 ? inches, the area becomes 100 square inches. find the length of the sides of the original square.

6 inches

Step-by-step explanation:

Let s be the length of one side of the original square.

Then (s + 4)^2 = 100.  Taking the squre root of both sides,

s + 4 = +10, so that s = 6 inches.

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!