Chapter 3: Q5. (page 156)

Find the cost of one jar of sauce in which your friend a box of spaghetti for $$1.59$ and $2$ jars of spaghetti sauce. The total cost was $$ 6.49$ .

Short Answer

Expert verified

The cost of one jar of sauce is $$ 2.45$ .

Step by step solution

Step 1. Apply the concept of Linear equation

In this type of question, apply the concept of basic linear equation and then doing mathematical operations.

Step 2. Finding the equation for the question

Since, the cost of spaghetti box is $$ 1.59$ and the number of spaghetti box bought is $2$ and the total cost was $$ 4.49$ .

Let the cost of one jar of sauce be $$ x$ .

Then, the equation should be of the form, Total Cost = Cost of one Spaghetti + 2 (Cost of one Spaghetti sauce)

Now, put the value of all terms in the above equation,

$\begin{array}{l} 6.49 = 1.5 + 2 \cdot x \\ 6.49 = 1.5 + 2 x \end{array}$

Step 3. Solving the equation of the expression

Since, the expression is $6.49 = 1.5 + 2 x$

Simply subtract $1.5$ to both side of the expression,

$\begin{array}{l} 6.49 = 1.5 + 2 x \\ 6.49 - 1.5 = 1.5 + 2 x - 1.5 \\ 4.9 = 2 x \\ x = \frac{4.9}{2} \\ x = 2.45 \end{array}$

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Find the cost of one jar of sauce in which your friend a box of spaghetti for $\(1.59$ and $2$ jars of spaghetti sauce. The total cost was $\) 6.49$ .

Short Answer

Step by step solution

Step 1. Apply the concept of Linear equation

Step 2. Finding the equation for the question

Step 3. Solving the equation of the expression

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Find the cost of one jar of sauce in which your friend a box of spaghetti for \(1.59 and2jars of spaghetti sauce. The total cost was \)6.49.

Short Answer

Step by step solution

Step 1. Apply the concept of Linear equation

Step 2. Finding the equation for the question

Step 3. Solving the equation of the expression

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Probability and Statistics

Pure Maths

Mechanics Maths

Theoretical and Mathematical Physics

Logic and Functions

Applied Mathematics

Study anywhere. Anytime. Across all devices.

Find the cost of one jar of sauce in which your friend a box of spaghetti for $\(1.59$ and $2$ jars of spaghetti sauce. The total cost was $\) 6.49$ .