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ivolga24 [154]
3 years ago
12

4x - 10 + 5x = 71 solve the equation and enter the value of x below ​

Mathematics
2 answers:
Hatshy [7]3 years ago
6 0
Add ten to both sides
Then combine the like terms
9x=81
X= 9
Liono4ka [1.6K]3 years ago
3 0

Answer:

x = 9

Step-by-step explanation:

First, combine like terms. Like terms are terms with the same variable as well as the same amount of said variables:

4x - 10 + 5x = 71

(4x + 5x) - 10 = 71

9x - 10 = 71

Note the equal sign, what you do to one side, you do to the other. Isolate the variable, x. Do the opposite of PEMDAS.

PEMDAS is the order of operations, and stands for:

Parenthesis

Exponents (& Roots)

Multiplications

Divisions

Additions

Subtractions

~

First, add 10 to both sides of the equation:

9x - 10 (+10) = 71 (+10)

9x = 71 + 10

9x = 81

Next, isolate the variable x by dividing 9 from both sides of the equation:

(9x)/9 = (81)/9

x = 81/9 = 9

x = 9 is your answer.

~

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Answer:

The ratio of the number of bulbs tested to defective bulbs is always 14 to 1.

<u><em>What is the unitary method?</em></u>

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

We generally expect industrial processes to produce defects at about the same rate, the proportion of the defective product is generally considered to be a remain constant.

Here, the proportion of defective bulbs is:

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The ratio of the number of bulbs tested to defective bulbs is expected to remain constant at about 14.

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2 years ago
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inn [45]

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