/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q8. Evaluate the expression when x=4... [FREE SOLUTION] | 91Ó°ÊÓ

91Ó°ÊÓ

Evaluate the expression when x=4andy=2

localid="1648624505758" 1.2x+3

Short Answer

Expert verified

The value of the expression is7.8.

Step by step solution

01

Step-1 – Order of operations

To evaluate any expression involving more than one operation, follow the below order of operations:

  • First evaluate expressions inside grouping symbols like parentheses ( ) or brackets [ ].
  • Evaluate the exponents.
  • Perform Multiplication and division from left to right.
  • Perform addition and subtraction from left to right.
02

Step-2 – Multiply

In order to evaluate the given expression, first substitute 4 for x and then simplify the expression further by multiplying the first two numbers as shown below

1.2x+3=1.2(4)+3=4.8+3

03

Step-3 – Add the numbers

Now to simplify further, add the resulting numbers to get

1.2x+3=1.2(4)+3=4.8+3=7.8

Thus, the value of the expression is 7.8.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91Ó°ÊÓ!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Study anywhere. Anytime. Across all devices.