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3 years ago

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Mathematics

1 answer:

Dmitry [639]3 years ago

7 0

Y= x2+2 is the correct answer

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Is 7x + 1 equivalent to 1 + 7x

mr_godi [17]

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Yes

Step-by-step explanation:

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3 years ago

A recipe calls for 1/8 teaspoon of vanilla extract if the recipe is doubled how much vanilla extract is needed

LUCKY_DIMON [66]

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2/8

Step-by-step explanation:

1. take 1/8 and multiply it by 2/1

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3 years ago

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Use a calculator to find tan 72°. Round to the nearest thousandth.

Irina-Kira [14]

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3.078

Step-by-step explanation:

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4 years ago

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By selling a cow for Rs 144, there is a profit of the same percentage as its cost price. Find the cost price.

hjlf

Answer:

Step-by-step explanation:

<h2><u>☼︎</u><u>Answer:</u></h2>

The cost price of cow = Rs.80

Explanation:

<h2><u>☼︎</u><u>Given :-</u></h2>

By selling a cow for Rs 144, there is a profit of the same percentage as its cost price.

The cost price.

The cost price of cow = Rs.x

<h2><u>☼︎</u><u>Solution :-</u></h2>

$\sf x + x \: of \: x\%= 144 \\ \\ \sf \implies x + \frac{x \times x}{100} = 144 \\ \\ \sf \implies {x}^{2} + 100x - 14400 = 0 \\ \\ \sf \implies x(x - 80) + 180(x - 80) = 0 \\ \\ \sf \implies x + 180 = 0 \\ \\ \sf \implies x = - 180 \\ \\ \sf \therefore \: {\boxed{ \sf \pink{x = 80}}}$

<h2><u>Hence: </u></h2>

The cost price of cow =<u>R</u><u>s</u><u>8</u><u>0</u>

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3 years ago

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What is the true solution to the equation below ?

ss7ja [257]

I dont know how to answer this tbh but I’m gonna guess x=75
Sorry if I’m wrong lol

HOPE THAT HELPED IN A WAY <3

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3 years ago