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3 years ago

8

How do you use equations to solve problems about area of Rectangles,

1 answer:

Stels [109]3 years ago

7 0

Each shape has a different formula for area. rectangles and parallelograms share the same formula, A=bh
Trapezoids formula is A= 1/2(b1 + b2)h
Triangles formula is A = 1/2bh
In all of these formulas, A means area, and h means the height of the shape. In the formulas for triangles and rectangles/parallelograms, b stands for the length of the base of the shape.
In the trapezoids formula, b1 means base 1 and b2 means base two, as a trapezoid has two different bases.
After finding all of the variables for the formula of the shape you're solving for, plug all the numbers into your missing variables, and solve as normal.

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3 years ago

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Answer:

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Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>

inequality
solving inequality
PEMDAS

<h3>given:</h3>

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x

<h3>let's solve:</h3>

few notes about inequality

the direction of the inequality doesn't change if you

Add (or subtract) a number from both sides
Multiply (or divide) both sides by a positive number
Simplify a side

the direction of the inequality does change

if you

Multiply (or divide) both sides by a negative number
Swapping left and right hand sides

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$5 \leqslant - 3x - 3 \leqslant 10$

$step - 2 : \\ add \: 3 \: in \: each \: sides$

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$8 \leqslant - 3x \leqslant 13$

$step - 3 : \\ divide \: - 3\: from \: each \: sides \: \\ and \: swap \: the \: inequalily$

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Hi,

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