If a=5 what is the value of the card 4a-2
2 answers:
Answer:
18
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
4a - 2
a = 5
<u>Step 2: Evaluate</u>
Substitute in <em>a</em>: 4(5) - 2 Multiply: 20 - 2 Subtract: 18
Answer:
The card "4a-2" is equal to 18
4a-2 = 18
Step-by-step explanation:
#1. Replace <em>a</em> with 5 and Your equation should look like the following:
4(5)-2
#2. Now Simplify, we all know that multiplication goes before subtraction or addition:
20-2
#3. Celebrate:
18
Woohoo
Hope this helps!
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Answer:
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Step-by-step explanation:
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We will use proportions to solve our given problem.
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Answer:
5% error
Step-by-step explanation:
Width = 10cm
Length = 25cm
<u>Explanation:
</u>
Given, width:length = 2:5
Let width = 2x ,
So, length = 5x
Perimeter of rectangle = 2x(length + width)
According to the question,
Hence,
Width = 10cm
Length = 25cm
Answer:
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