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Mrs. Zamir wants to buy 8 protractors and some erasers for her classroom.She has $30.00. If protractors cost $2.65 each, how muc

goblinko [34]

Mrs. Zamir has $\fbox{\bf\$8.8}$ left to buy eraser.

Further explanation :

Multiplication is a mathematical operation such that two real numbers are performed in such a way that they derive a third number called product.

For example:

There are two numbers $4{\text{ and 5}}$ then multiply both the numbers as,

$4\times5=20$

Therefore, 20 is the product of 4 and 5.

It is given that Mrs. Zamir wants to buy 8 protractors and some erasers for her classroom.

She has total $\$30$ .

If the price of the protractor is $\$2.65$ each.

Therefore, she spends total amount of money on protractor can be calculated by multiplying 8 protractors by 2.65 as,

$\begin{aligned}n&=8\times2.65\\&=21.2\\\end{aligned}$

Thus, she spends $\$21.2$ on protractors.

Now, she has total $\$30$ and $\$21.2$ she spends on protractors.

Therefore, she left with the amount $r$ as,

$\begin{aligned}r&=30-21.2\\&=8.8\\\end{aligned}$

Therefore, she has $\fbox{\bf\$8.8}$ amount left for eraser.

Learn more :

1. Problem on the whole numbers are positive integers brainly.com/question/1852063.

2. Problem on the adding and simplifying the numbers brainly.com/question/894273.

3. Problem on the general form of the equation of the circle brainly.com/question/1506955.

Answer details:

Grade: Junior school

Subject: Mathematics

Chapter: Multiplication and division

Keywords: Mrs. Zamir, protractors, erasers, cost, multiplication, division, addition, subtraction, real numbers, decimal numbers.

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d

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2. From pages 86-88, the authors discuss lawyers, police officers, judges, and community members. In this section, do the authors ever give you their opinion on any of the issues discussed?

From pages 86-88, the authors don’t give their opinions on any of these topics. They only present what other scholars have studied and put this information into their own literature review paper.

3. Examine the section entitled “Verdicts” (pp. 90-92). How do the results from the study by Shelton et al. differ from the results of the study by Kim, Barak, and Shelton? How do the results of the study by Baskin and Sommers differ from the results of other studies?

Shelton et al’s study on verdicts focused on those who watch or don’t watch CSI shows and that neither plays a role when jurors decide on a verdict on a suspect. Kim, Barak, and Shelton differs from the first study in that exposure from watching these shows does have an indirect affect to jurors concerning circumstantial evidence. If the case has circumstantial evidence, the jurors are more influenced in giving a verdict. Baskin and Sommers results differ from the rest in that they used a telephone survey to see how likely one would convict a suspect using no scientific evidence. The others focused on watching shows and using circumstantial evidence as basis for verdict, whereas Baskins and Summers article focuses more on attitudes than the behaviors when determining verdict decisions.

4. As a result of having read this article, please write a few sentences about what you might have learned about a) synthesizing sources or b) the CSI effect.

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