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Rufina [12.5K]
2 years ago
11

Hellp me What is the value of x? (5 points)

Mathematics
2 answers:
polet [3.4K]2 years ago
5 0
Answer: 30

Explanation: 2x+30=90
-30 -30
2x=60
x=30



Hope this helps! :)
juin [17]2 years ago
3 0
2(30)=60+30=90. thats a right angle which is 90 degrees so the answer is 30
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The amount of the first alloy is 450 grams and the amount of the second alloy is 30 grams.

<h3>What is a linear equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have:

A chemist has two alloys, one of which is 5% gold and 20% lead and the other which is 30% gold and 50% lead.

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