Use complete sentences to describe why it is necessary to do the same thing to both sides of an equation to perform valid operations

It is necessary to do the same thing to both sides of the equation because otherwise the equation would be unblanced and you end up creating answers and number that are wrong. Just like in science an equation has to be balanced because you cannot add or destory numbers in an equation unless the same action has been done to both sides so it is equal

Step-by-step explanation:

answer: $34.31

step-by-step explanation:

$11.99 x 3 = $35.97

$35.97 - 10% = $32.37

$32.37 + 6% = $34.31

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%