We have to find the width first.
72 divide by 9 = 8
To find the perimeter, you can do it two ways:
1. 9 + 8 + 9 + 8 = 34
2. 2(9) + 2(8) = 18 + 16 = 34
The answer is 34 feet.
David's age: x
Joshua: x + 5
Simon: (x+5) + 4 or x + 9
Simon's age + David's age = 15
(x+9) + (x) = 15
2x = 15 - 9
2x/2 = 6/2
x = 3
The ages of the boys:
David: x = 3 years old
Joshua: 3+5 = 8 years old
Simon: 3+9 = 12 years old
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The value of -2−(−10) in a addtition expression is 8.
<h3>What is an expression?</h3>
Expression simply refers to the mathematical statements which have at least two terms which are related by an operator and contain either numbers, variables, or both.
Addition, subtraction, multiplication, and division are all possible mathematical operations. As an illustration, the expression x + y has the terms x and y with an addition operator between them.
In this case, -2 - (-10) will be:
= -2 -(-10)
= -2 + 10
= 8
The value is 8.
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