3 years ago

Write an equivalent expression. Simplify.3(4x-10)

Mathematics

1 answer:

lina2011 [118]3 years ago

6 0

Answer:

12x-30 is the answer simplified

Step-by-step explanation

theres no much of a process

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1 The metal used to make a coin is a mixture of steel and copper. The ratio mass of steel

Masteriza [31]

$\huge{ \underline{ \underline{ \gray{ \bf{Solution:}}}}}$

Let,

Mass of the steel be 108x
Mass of the copper be 7x
Then, Total mass = 108x + 7x = 115x

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Total mass of the coin = 230 mg

That means,

⇛ Total mass of the coin = 230 mg

⇛ 115x = 230 mg

⇛ x = 230 mg/115

⇛ x = 2 mg

Then,

Mass of the steel = 108(2) = 216 mg
Mass of the copper = 7(2) = 14 mg

☁️ ANSWER - 14 mg (Mass of copper)

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3 years ago

2.0 x 10³ =<br> Write this number in standard notation

shusha [124]

Answer:

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Step-by-step explanation:

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