Question

I need some help. I'll give you medals.

Answer 1

uestion 1 (Multiple Choice Worth 1 points)

[5.07] MA.7.A.1.2

Victor calculates the percentage interest rate he needs to make twenty dollars in simple annual interest over 2 months on a deposit of one thousand dollars. Where did he go wrong?

I equals p times r times t; twenty equals one thousand times r times two; r equals zero point zero one; r equals one percent

He applied the principal and interest to the wrong variables.

He should have divided 2 by twelve to get the value for t.

He misrepresented the earned interest with the final balance.

He should have multiplied r by one hundred to get the interest rate as a percentage.

Question 2 (Multiple Choice Worth 1 points)

[5.07] MA.7.A.1.2

As incentive for Gretchen to save the three thousand dollars she recently inherited, her parents tell her that they will pay her fifteen percent simple annual interest on the amount that she saves. How much money will Gretchen have after 3 years if she saves all of the money she inherited?

three thousand eight hundred dollars

three thousand eight hundred seventy dollars

four thousand three hundred fifty dollars

four thousand six hundred twenty-one dollars

Question 3 (Multiple Choice Worth 1 points)

[5.01] MA.6.A.2.2

Four friends went scuba diving. According to the following statements, who spotted sea life at the fastest rate?

Lance saw 2 reef sharks in 5 minutes.

Jasmine saw 4 sea cucumbers in 8 minutes.

Robert saw 5 jellyfish in fifteen minutes.

Shilpa saw 3 pencil urchins in ten minutes.

Question 4 (Multiple Choice Worth 1 points)

[5.05] MA.7.A.1.2

A number is increased by forty percent, or three hundred sixty. What is the original number?

two hundred fifty-seven

three hundred twenty

six hundred

nine hundred

Question 5 (Multiple Choice Worth 1 points)

[5.04] MA.7.A.1.2

Which of the following could be solved using the percent equation: nine equals zero point five times b?

Victor's breakfast cereal has zero point five mg of Iron. What percentage of the Recommended Daily Allowance (RDA) of Iron is in his cereal if the RDA is 9 mg per day?

Victor's breakfast cereal has 9 mg of Iron, which is fifty percent of the Recommended Daily Allowance (RDA) of Iron. What is the RDA of Iron?

Victor's breakfast cereal has 9 mg of Iron. What percentage of the Recommended Daily Allowance (RDA) of Iron is in his cereal if the RDA is fifty mg per day?

Victor's breakfast cereal has zero point five mg of Iron, which is nine percent of the Recommended Daily Allowance (RDA) of Iron. What is the RDA of Iron?

Question 6 (Multiple Choice Worth 1 points)

[5.02] MA.7.A.1.6

At a town fair, ten tickets cost eight dollars. How many tickets could you expect to receive for twelve dollars, assuming there is no discount for buying more tickets?

ten

fourteen

fifteen

sixteen

Question 7 (Matching Worth 1 points)

[5.01] MA.6.A.2.1

Match each pair of equivalent ratios.

Match Term Definition
nine over twenty A) forty−five percent
fifteen colon forty B) twelve to thirty−two
ten over twenty−five C) four colon ten
6 to 8 D) fifteen over twenty
Question 8 (Multiple Choice Worth 1 points)

[5.05] MA.7.A.1.2

Lydia received a parking ticket because she parked ten feet from a fire hydrant. She had estimated her distance from the fire hydrant as being the minimum allowable distance, which is fifteen feet. What was her percent error?

fifteen percent

thirty-three percent

fifty percent

sixty-seven percent

Question 9 (Multiple Choice Worth 1 points)

[5.04] MA.7.A.1.2

Otto mixed spices to create his own Italian seasoning. He used twenty percent garlic powder. Which of the following shows the percent equation and solution for how many tablespoons of garlic powder he uses to create sixteen tablespoons of the seasoning?

a equals zero point two times sixteen; a equals three point two

sixteen equals zero point two times a; a equals eighty

a equals zero point two times sixteen; a equals eighty

sixteen equals zero point two times a; a equals three point two

Question 10 (Matching Worth 1 points)

[5.02] MA.7.A.1.1

Match each proportion with its solution.

Match Term Definition
x over two equals fifteen over six A) 6
twelve over sixteen equals thirty over x B) 5
four over twelve equals x over eighteen C) forty
twelve over x equals eight over twelve D) eighteen
Question 11 (Multiple Choice Worth 1 points)

[5.06] MA.7.A.1.2

Danika has saved enough money to pay cash for a used car. She wants to buy a car that costs five thousand five hundred dollars before taxes. If she will be charged seven percent sales tax, what is the total amount she will pay for the car?

five thousand one hundred fifteen dollars

five thousand five hundred seventy dollars

five thousand eight hundred eighty-five dollars

five thousand nine hundred fourteen dollars

Question 12 (Multiple Choice Worth 1 points)

[5.03] MA.7.A.1.2

A twelve-gallon gas tank is thirty percent full. Which proportion could be used to determine how many gallons of gasoline are in the tank?

twelve over thirty equals x over one hundred

thirty over x equals twelve over one hundred

x over twelve equals thirty over one hundred

x over one hundred equals thirty over twelve

Question 13 (Multiple Choice Worth 1 points)

[5.02] MA.7.A.1.1

Which of the following forms a proportion with eight over twenty?

ten over four

six over fifteen

ten over sixteen

four over sixteen

Question 14 (Multiple Choice Worth 1 points)

[5.06] MA.7.A.1.2

Fayed tipped the pizza delivery driver two dollars for pizzas that cost eighteen dollars. Approximately what percent did he tip the driver? Round your answer to the nearest percent.

two percent

nine percent

eleven percent

sixteen percent

Question 15 (Multiple Choice Worth 1 points)

[5.07] MA.7.A.1.2

After how many months will Rita pay one hundred dollars in simple annual interest on a credit card that charges sixteen percent on her five hundred dollars balance?

2 months

fifteen months

twenty months

sixty months

Question 16 (Matching Worth 1 points)

[5.03] MA.7.A.1.2

Match each percent problem with its solution.

Match Term Definition
3 is what percent of twelve? A) twenty−five
twelve is four percent of what number? B) thirty−six
four percent of what number is 3? C) three hundred
What is thirty percent of one hundred twenty? D) seventy−five
Question 17 (Multiple Choice Worth 1 points)

[5.06] MA.7.A.1.2

Which of the following statements represents the highest amount?

Income on a fifty thousand dollar salary after nineteen percent income tax

Salary before a nineteen percent pay raise to fifty thousand dollars

nineteen percent commission on fifty thousand dollars

Salary before a nineteen percent pay cut to fifty thousand dollars

Question 18 (Multiple Choice Worth 1 points)

[5.04] MA.7.A.1.2

Which of the following would you use as the percent equation to determine what number is seventy percent of forty?

a equals zero point four times seventy

seventy equals zero point four times a

a equals zero point seven times forty

forty equals zero point seven times a

Question 19 (Multiple Choice Worth 1 points)

[5.03] MA.7.A.1.2

Kenny goes shopping for school clothes during a tax−free weekend, and he saves six percent sales tax. Use a percent proportion to determine how much he would save if he bought clothes worth three hundred dollars. Which of the following is true?

The solution is eighteen dollars, and is a denominator in the proportion.

The solution is eighteen dollars, and is a numerator in the proportion.

The solution is five thousand dollars, and is a denominator in the proportion.

The solution is five thousand dollars, and is a numerator in the proportion.

Question 20 (Multiple Choice Worth 1 points)

[5.05] MA.7.A.1.2

Nadia took two practice exams to prepare for her college entrance exam. On the first practice exam, she scored one thousand one hundred. After studying, her score increased by twenty-five percent. What was her score on the second practice exam?

one thousand one hundred twenty-five

one thousand three hundred fifty

one thousand three hundred seventy-five

one thousand four hundred sixty-seven