Chapter 3: Q. 3.3 (page 305)

Guillermo bought textbooks and notebooks at the bookstore. The number of textbooks was $3$ more than twice the number of notebooks. He bought $7$ textbooks. How many notebooks did he buy?

Short Answer

Expert verified

He bought $2$ notebooks.

Step by step solution

Step 1. Given information.

Consider the given question,

No. of textbooks was $3$ more than twice the number of notebooks.

No. of textbooks bought is $7$ .

Assume nto be the no. of notebooks. Then,

role="math" localid="1647074164097" $7 = 3 + 2 n 2 n = 4 n = 2$

Step 2. Check the answer.

Consider the given question,

We know there are $7$ notebooks which was $3$ more than twice the number of $2$ notebooks.

Then,

$7 = 3 + 2 (2) 7 = 3 + 4 7 = 7$

Hence, $L H S = R H S$ and proved.

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Guillermo bought textbooks and notebooks at the bookstore. The number of textbooks was $3$ more than twice the number of notebooks. He bought $7$ textbooks. How many notebooks did he buy?

Short Answer

Step by step solution

Step 1. Given information.

Step 2. Check the answer.

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Guillermo bought textbooks and notebooks at the bookstore. The number of textbooks was 3 more than twice the number of notebooks. He bought 7 textbooks. How many notebooks did he buy?

Short Answer

Step by step solution

Step 1. Given information.

Step 2. Check the answer.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Logic and Functions

Applied Mathematics

Statistics

Geometry

Discrete Mathematics

Calculus

Study anywhere. Anytime. Across all devices.

Guillermo bought textbooks and notebooks at the bookstore. The number of textbooks was $3$ more than twice the number of notebooks. He bought $7$ textbooks. How many notebooks did he buy?