Discount= 80% sale price= $90
Okay. So you deposit $150 in January and 10% more as each month passes by, which if you count, that would be 7 months. When it comes to compound interest, the formula for it is P(1 + r)^t. That means r = interest rate, P = principal, and t = time. In this case, we add 1 to 10% in decimal for. 10% is 0.1 in decimal form. 1 + 0.1 is 1.1. Now, compound 1.1 to the 7th power, because you repeat this 7 times. 1.1^7 is 1.9487171. Don't delete the decimal from your calculator. Now, multiply that decimal by 150 to get the new amount. When you do, you get 292.307565 or 292.31 when rounded to the nearest hundredth. You deposit $292.31 in August.
An isosceles triangle is one where two sides are equal to each other. The third side is of a different length.
At first glance, choice A looks like the answer because we have two sides that are the same length (the sides of length 1). However, this triangle is not possible because 1+1 = 2 which is less then 3. For a triangle to be possible, adding up two sides must be larger than the third side. I'm using the triangle inequality theorem here.
This works for choice D since 6+6 = 12 which is greater than 5. Also 5+6 = 11 which is greater than 6. So the answer is choice D
Answer:
9 / 40 or 0.225
Step-by-step explanation:
total marbles : 9 + 12 + 13 + 6 = 40 marbles
probability of taking red = total red marbles/ total number of marbles
probability of taking red = 9 / 40