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Common Core: 7th Grade Math : Solve Multi-Step Problems with Positive and Negative Rational Numbers: CCSS.Math.Content.7.EE.B.3

Study concepts, example questions & explanations for Common Core: 7th Grade Math

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All Common Core: 7th Grade Math Resources

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Example Questions

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Example Question #41 :Expressions & Equations

If a server at a restaurant gets a $15\%$ tip on a bill of $\$25$ , then what will be the amount of the tip?

Possible Answers:

$\$3.75$

$\$3.50$

$\$3.00$

$\$3.55$

$\$3.25$

Correct answer:

$\$3.75$

解释:

The first step to solving this problem is determining what operation we are going to use.

Think:we know that the tip is going to be $15\%$ of $\$25$ . The keyword "of" gives us a clue and indicates that we are going to multiply.

As we have learned in previous lessons, we need to convert our percentage into a decimal before we are able to multiply:

$15\%\rightarrow0.15$

Next, we can perform the multiplication operation and find the tip:

$\frac{\begin{array}[b]{r}25\\ \times\ .15\end{array}}{ \ \ \space 3.75}$

The server's tip will be $\$3.75$

Report an Error

Example Question #41 :Expressions & Equations

If a server at a restaurant gets a $15\%$ tip on a bill of $\$38$ , then what will be the amount of the tip?

Possible Answers:

$\$5.90$

$\$5.80$

$\$5.60$

$\$5.70$

$\$5.50$

Correct answer:

$\$5.70$

解释:

The first step to solving this problem is determining what operation we are going to use.

Think:we know that the tip is going to be $15\%$ of $\$38$ . The keyword "of" gives us a clue and indicates that we are going to multiply.

As we have learned in previous lessons, we need to convert our percentage into a decimal before we are able to multiply:

$15\%\rightarrow0.15$

Next, we can perform the multiplication operation and find the tip:

$\frac{\begin{array}[b]{r}38\\ \times\ .15\end{array}}{ \ \ \space 5.70}$

The server's tip will be $\$5.70$

Report an Error

Example Question #43 :Expressions & Equations

If a server at a restaurant gets a $15\%$ tip on a bill of $\$50$ , then what will be the amount of the tip?

Possible Answers:

$\$7.90$

$\$7.60$

$\$7.80$

$\$7.70$

$\$7.50$

Correct answer:

$\$7.50$

解释:

The first step to solving this problem is determining what operation we are going to use.

Think:we know that the tip is going to be $15\%$ of $\$50$ . The keyword "of" gives us a clue and indicates that we are going to multiply.

As we have learned in previous lessons, we need to convert our percentage into a decimal before we are able to multiply:

$15\%\rightarrow0.15$

Next, we can perform the multiplication operation and find the tip:

$\frac{\begin{array}[b]{r}50\\ \times\ .15\end{array}}{ \ \ \space 7.50}$

The server's tip will be $\$7.50$

Report an Error

Example Question #51 :Expressions & Equations

If a server at a restaurant gets a $15\%$ tip on a bill of $\$57$ , then what will be the amount of the tip?

Possible Answers:

$\$8.45$

$\$8.50$

$\$8.60$

$\$8.55$

$\$8.40$

Correct answer:

$\$8.55$

解释:

The first step to solving this problem is determining what operation we are going to use.

Think:we know that the tip is going to be $15\%$ of $\$57$ . The keyword "of" gives us a clue and indicates that we are going to multiply.

As we have learned in previous lessons, we need to convert our percentage into a decimal before we are able to multiply:

$15\%\rightarrow0.15$

Next, we can perform the multiplication operation and find the tip:

$\frac{\begin{array}[b]{r}57\\ \times\ .15\end{array}}{ \ \ \space 8.55}$

The server's tip will be $\$8.55$

Report an Error

Example Question #52 :Expressions & Equations

If a server at a restaurant gets a $20\%$ tip on a bill of $\$25$ , then what will be the amount of the tip?

Possible Answers:

$\$3.25$

$\$4.20$

$\$5.00$

$\$2.50$

$\$4.50$

Correct answer:

$\$5.00$

解释:

The first step to solving this problem is determining what operation we are going to use.

We know that the tip is going to be $20\%$ of $\$25$ . The keyword "of" gives us a clue and indicates that we are going to multiply.

As we have learned in previous lessons, we need to convert our percentage into a decimal before we are able to multiply:

$20\%\rightarrow0.20$

Next, we can perform the multiplication operation and find the tip:

$\frac{\begin{array}[b]{r}25\\ \times\ .20\end{array}}{ \ \ \space 5.00}$

The server's tip will be $\$5.00$

Report an Error

Example Question #11 :Solve Multi Step Problems With Positive And Negative Rational Numbers: Ccss.Math.Content.7.Ee.B.3

If a server at a restaurant gets a $15\%$ tip on a bill of $\$15$ , then what will be the amount of the tip?

Possible Answers:

$\$3.00$

$\$2.50$

$\$2.75$

$\$2.25$

$\$2.00$

Correct answer:

$\$2.25$

解释:

The first step to solving this problem is determining what operation we are going to use.

We know that the tip is going to be $15\%$ of $\$15$ . The keyword "of" gives us a clue and indicates that we are going to multiply.

As we have learned in previous lessons, we need to convert our percentage into a decimal before we are able to multiply:

$15\%\rightarrow0.15$

Next, we can perform the multiplication operation and find the tip:

$\frac{\begin{array}[b]{r}15\\ \times\ .15\end{array}}{ \ \ \space 2.25}$

The server's tip will be $\$2.25$

Report an Error

Example Question #54 :Expressions & Equations

If a server at a restaurant gets a $15\%$ tip on a bill of $\$42$ , then what will be the amount of the tip?

Possible Answers:

$\$4.40$

$\$4.30$

$\$6.30$

$\$4.10$

$\$4.50$

Correct answer:

$\$6.30$

解释:

The first step to solving this problem is determining what operation we are going to use.

Think:we know that the tip is going to be $15\%$ of $\$42$ . The keyword "of" gives us a clue and indicates that we are going to multiply.

As we have learned in previous lessons, we need to convert our percentage into a decimal before we are able to multiply:

$15\%\rightarrow0.15$

Next, we can perform the multiplication operation and find the tip:

$\frac{\begin{array}[b]{r}42\\ \times\ .15\end{array}}{ \ \ \space6.30}$

The server's tip will be $\$6.30$

Report an Error

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Common Core: 7th Grade Math : Solve Multi-Step Problems with Positive and Negative Rational Numbers: CCSS.Math.Content.7.EE.B.3

Study concepts, example questions & explanations for Common Core: 7th Grade Math

All Common Core: 7th Grade Math Resources

Example Questions

Example Question #41 :Expressions & Equations

Example Question #41 :Expressions & Equations

Example Question #43 :Expressions & Equations

Example Question #51 :Expressions & Equations

Example Question #52 :Expressions & Equations

Example Question #11 :Solve Multi Step Problems With Positive And Negative Rational Numbers: Ccss.Math.Content.7.Ee.B.3

Example Question #54 :Expressions & Equations

All Common Core: 7th Grade Math Resources

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