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3 years ago

What is 0.9(x-20)=830 Rounded to the Hundreths (second) decimal place

Mathematics

1 answer:

enot [183]3 years ago

4 0

Answer:

x= 942.22

Step-by-step explanation:

.9x-18=830

.9x=848

x=942.222222222

which will be x= 942.22

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What is the solution to the equation?

timama [110]

Answer:

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Step-by-step explanation:

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3 years ago

The points (−3, r) and (2, 1) lie on a line with slope −2 . Find the missing coordinate r .

SVETLANKA909090 [29]

We can use point slope form to solve for this.

y - 1 = -2(x - 2)
Simplify.
y - 1 = -2x + 4
Add 1 to both sides.
y = -2x + 5

Now, we can input -3 for x and solve for y, or r in this case.

y = -2(-3) + 5
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3 years ago

3x-8=25 solve for x

VMariaS [17]

Add 8 to both sides
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3 years ago

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Lucy writes down her phone number by breaking it down into the format (949) 205-6630 instead of as a continuous 10-digit string

Klio2033 [76]

The strategy that Lucy uses to recall her phone number is what is known as Chunking.

<h3>What is Memory?</h3>

This refers to the place where information is stored for future use and can either be a short or long-term memory.

Hence, we can see that based on the breaking down of her phone numbers of Lucy into a particular format that separates them using country/state code, she is making use of chunking.

This method of chunking is effective because it would help Lucy to recall her number quite easily.

Read more about memory here:

brainly.com/question/24688176

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2 years ago

Which number produces an irrational number when added to 0.4

erastovalidia [21]

Answer:

0.31311311131111....

Step-by-step explanation:

We need to tell a number which when adds to 0.4 makes it a Irrational Number . We know that ,

Rational number :- The number in the form of p/q where p and q are integers and q is not equal to zero is called a Rational number .

Irrational number :- Non terminating and non repeating decimals are called irrational number .

Recall the property that :-

Property :- Sum of a Rational Number and a Irrational number is Irrational .

So basically here we can add any Irrational number to 0.4 to make it Irrational . One Irrational number is ,

$\rm\implies Irrational\ Number = 0.31311311131111...$

So when we add this to 0.4 , the result will be Irrational . That is ,

$\rm\implies 0.4 + 0.31311311131111 ... = 0.731311311131111 ..$

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3 years ago

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