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Zarrin [17]
2 years ago
11

2 What is the value of a in the equation 5a - 10b = 45, when b = 3? 3 15 21 39

Mathematics
1 answer:
dolphi86 [110]2 years ago
5 0

Answer:

Q1 is 15

Q2 is 39

Q3 is 51

Q4 is 87

Step-by-step explanation:

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----------------------------------
Define x :
----------------------------------
Let the width be x.
Width = x
Length = 2x + 5                // Length is 5ft longer than twice the width

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Formula for Perimeter :
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Perimeter = 2 (Length + Width)

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Find Width :
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58 = 6x + 10                    // Apply distributive property
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x = 8                                // Divide by 6 on both sides

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Find Length and Width :
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Width = x = 8 ft
Length = 2x + 5 = 2(8) + 5 = 21 ft

--------------------------------------------------------------------
Answer: The length is 21 ft and the width is 8 ft.
--------------------------------------------------------------------

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2 years ago
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