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3 years ago

What is x? 3x+43=100

Mathematics

2 answers:

jenyasd209 [6]3 years ago

8 0

Answer:

x = 19

Step-by-step explanation:

Solve for x:

3 x + 43 = 100

Subtract 43 from both sides:

3 x + (43 - 43) = 100 - 43

43 - 43 = 0:

3 x = 100 - 43

100 - 43 = 57:

3 x = 57

Divide both sides of 3 x = 57 by 3:

(3 x)/3 = 57/3

3/3 = 1:

x = 57/3

The gcd of 57 and 3 is 3, so 57/3 = (3×19)/(3×1) = 3/3×19 = 19:

Answer: x = 19

Aloiza [94]3 years ago

5 0

Answer:

x= 19

Step-by-step explanation:

3x+43= 100

Subtract 43 from both sides.

3x+43= 100

-43 -43

Then, divide 3 to both sides.

3x= 57

3 3

x= 19

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Answer:

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The check revealed that

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Step-by-step explanation:

From the question we are told that

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Generally the test statistics is mathematically evaluated as

$t = \frac{\= x - \mu}{ \frac{\sigma }{\sqrt{n} } }$

substituting values

$t = \frac{ 4.6 - 5}{ \frac{2.2}{\sqrt{20} } }$

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Looking at the value of t and $Z_{\alpha }$ we see that $t < Z_{\alpha }$ so we fail to reject the null hypothesis

This implies that there is sufficient evidence to support the claim that in a small city renowned for its music school, the average child takes at least 5 years of piano lessons.

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What is x? 3x+43=100​

What is x? 3x+43=100