Answer:
140 coins
Step-by-step explanation:
To calculate the total number of coins Kate have in her collection, we can use the rule of three:
The problem says that 7 of her coins are equivalent of 5% of her entire collection, and we want to know the total number of coins (100%) of her collection. So, if 7 coins are 5%, how much coins are 100%:
7 -> 5%
X -> 100%
7/X = 5/100
X = 100*7/5 = 140 coins
Answer:
A
Step-by-step explanation:
Argument
C and D are wrong right off the top. When you have x + 2 in synthetic division the divisor (2) must change signs.
B is incorrect because you don't change the signs of the polynomial that is being divided into. So that only leaves A and it is correct.
Summary
- Change the sign of the binomial doing the dividing (2 goes to - 2)
- Leave the polynomial's coefficients alone.
Answer:
You had to pay $30.69 after the sales tax factored in.
Step-by-step explanation:
First step is to find 7% of $28.68.
The answer to that is the sales tax, therefore making the sales tax $2.01.
Finally, you have to add $2.01 to $28.68 to get a total of $30.69, your final answer.