Answer:
15% if I remember correctly
Answer:$425
Step-by-step explanation: Of you have a painting that is $1700 and is on sale for a week for example, you would take your percent and move the decimal to the left TWO times and put /100 over it, and then multiply it by 1700/10, and there's your answer. Cross simplify if you can.
Answer:
21
Step-by-step explanation:
The answer is b2 = 2A/h - b1
A = 1/2(b1 + b2)h
Multiply both sides by 2:
2 * A = 2 * 1/2(b1 + b2)h
2A = (b1 + b2)h
Divide both sides by h:
2A/h = (b1 + b2)h/h
2A/h = b1 + b2
Subtract b1 from both sides:
2A/h - b1 = b1 + b2 - b1
2A/h - b1 = b2
