Keiko sold 3 less than three-fourths of his sister's sales. Which expression represents what Keiko sold? Three-fourths x minus 3 Three-fourths x + 3 3 x + three-fourths 3 x minus three-fourths

An algebraic expression is one that is obtained by performing a finite number of algebraic operations on symbols that represent numbers.

Any of the common arithmetic operations, such as addition, subtraction, multiplication, division, raising to a whole number power, and taking roots, is a basic algebraic operation.

Let denotes sale of sister of Keiko.

As Keiko sold less than three-fourths of his sister's sales,

Sales of Keiko

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Step-by-step explanation:

Given that:

Keiko sold 3 less than three-fourths of his sister's sale.

To find:

Expression that represents what Keiko sold ?

Solution:

First of all, let the sales done by Keiko's sister =

Now, let us consider the Keiko's sale word by word.

3 less than three-fourths of his sister's sale.

i.e. subtract 3 from the expression obtained in 1st line.

So, sales done by Keiko =

So, correct answer is:

1. perpendicular

2. parallel

3. perpendicular