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Viefleur [7K]
2 years ago
10

What is the value of y in the equation 5x + 2y = 20, when x = 0.3?

Mathematics
2 answers:
Brilliant_brown [7]2 years ago
6 0

Answer: 9.25

Step-by-step explanation:

Given equation : 5x + 2y = 20

To find the value of y at x= 0.3, we need to first substitute the value of x= 0.3 in the given equation.

Now, Substitute x= 0.3 in given equation, we get

5(0.3) + 2y = 20\\\\\Rightarrow\ 1.5+2y=20

Subtract 1.5 from both sides .

2y=18.5

Divide both sides by 2 .

y=9.25

Hence, the value of y= 9.25

Dimas [21]2 years ago
5 0
Y=9.25 (short answer but hope this helped u)
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If(√14/√7-2)-(√14/√7+2)=a√7+b√2 find the values of a and b where a and b are rational numbers​
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============================

<h2>Given expression:</h2>

\dfrac{\sqrt{14} }{\sqrt{7}-2} -\dfrac{\sqrt{14} }{\sqrt{7}+2}

<h2>Simplify it in steps:</h2>

<h3>Step 1</h3>

Bring both fractions into common denominator:

\dfrac{\sqrt{14} (\sqrt{7}+2)}{(\sqrt{7}-2)(\sqrt{7}+2)} - \dfrac{\sqrt{14} (\sqrt{7}-2)}{(\sqrt{7}-2)(\sqrt{7}+2)}

<h3>Step 2</h3>

Simplify:

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<h3>Step 3</h3>

Compare the result with given expression to get:

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