Solve for a . 5a − 2 = 23 a =

Mathematics

2 answers:

True [87]3 years ago

8 0

Answer:

a=5

Step-by-step explanation:

$5a - 2 = 23$

$5a = 23 + 2$

$5a = 25$

$\frac{5a}{5} = \frac{25}{5}$

$a = \frac{25}{5}$

$a = 5$

Anestetic [448]3 years ago

3 0

5a - 2 = 23
5a +2 = +2
5a = 25
5a/5 = 25/5
a = 5

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Find the sum of 3.0478 and 4.92 using the correct number of significant digits.

Nat2105 [25]

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<u>Step-by-step explanation:</u>

We have , $Number1 = 3.0478$ and $Number2 =4.92$ . The significant digits of a number are digits that includes all digits except:

All leading zeros. For example, "013" has two significant figures: 1 and 3;

Trailing zeros when they are merely placeholders to indicate the scale of the number and ,

Spurious digits introduced, for example, by calculations carried out to greater precision than that of the original data, or measurements reported to a greater precision than the equipment supports.

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