3 years ago

Whats x value please help

Mathematics

1 answer:

ryzh [129]3 years ago

3 0

Answer:Step-by-step explanation:

x+46=90

x=90-46

x=44°

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Let U = {1,2,3,4,5,6,7,8,9,10}, A = {1,3,5,7,9}, B = {2,4,6,8,10} and C = {1,2,3,4} find (i) U' ii) A∩A' iii) A – ( B U C) iv) A

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The function for the amount saved if they purchase a used drone rather than a new drone from Jim's store is f(x) = 0.45x

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So, the selling price of a used drone is:

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Express percentage as decimal

$\mathbf{Used = 0.7 \times x}$

$\mathbf{Used = 0.7x}$

Also, he sells new drones at 15% more of the price (x).

So, the selling price of a new drone is:

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Express percentage as decimal

$\mathbf{New= (1 + 0.15) \times x}$

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$\mathbf{New= 1.15x}$

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So, we have:

$\mathbf{Saved =New - Old}$

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Subtract

$\mathbf{Saved =0.45x}$

Express as a function

$\mathbf{f(x) = 0.45x}$

Hence, the function for the amount saved is f(x) = 0.45x