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sergeinik [125]
3 years ago
13

Solve and show work. 0.9 (3 - x)

Mathematics
2 answers:
kolezko [41]3 years ago
8 0
Distribute 0.9 to (3-x) 
0.9 x 3 - 0.9x multiply the numbers
2.7 - 0.9x 
garri49 [273]3 years ago
8 0
The answer to the problem is -0.9x+2.7
You might be interested in
Is 81/4 considered a rational number
maks197457 [2]

Answer:

No

Step-by-step explanation:

A rational number is a number that can be expressed as a fraction p/q where p and q are integers and q!=0. A rational number p/q is said to have numerator p and denominator q. Numbers that are not rational are called irrational numbers. The real line consists of the union of the rational and irrational numbers. The set of rational numbers is of measure zero on the real line, so it is "small" compared to the irrationals and the continuum.

The set of all rational numbers is referred to as the "rationals," and forms a field that is denoted Q. Here, the symbol  Q derives from the German word Quotient, which can be translated as "ratio," and first appeared in Bourbaki's Algèbre (reprinted as Bourbaki 1998, p. 671).

Any rational number is trivially also an algebraic number.

Examples of rational numbers include -7, 0, 1, 1/2, 22/7, 12345/67, and so on. Farey sequences provide a way of systematically enumerating all rational numbers.

The set of rational numbers is denoted Rationals in the Wolfram Language, and a number  x can be tested to see if it is rational using the command Element[x, Rationals].

The elementary algebraic operations for combining rational numbers are exactly the same as for combining fractions.

It is always possible to find another rational number between any two members of the set of rationals. Therefore, rather counterintuitively, the rational numbers are a continuous set, but at the same time countable.

8 0
4 years ago
About 79,000 people live in a circular region with a population density of about 513 people per square mile. Find the radius of
Natalija [7]

To solve this problem, let us first assign some variables. Let us say that:

d = represents the population density of the circular region (in units of 513 people per square mile)

p = represents the population of the circular region (in units of people)

r = is the radius of the circular region

 

Now we can see that if we divide p by d, we can get a value which has a units of square mile. Thus the area of the region, hence:

Area = 79,000 people / (513 people per square mile)

Area = 154 square mile

 

The area of a circle has the formula:

Area = π r^2

Therefore calculating for r:

154 square mile = π r^2

r = 7 miles            (ANSWER)

5 0
3 years ago
Heather's grandmother is 5 times as old as Heather. If her grandmother is 5 points
Sloan [31]
85 \5 =17 so heather is 17
5 0
3 years ago
The equations of two lines are given. Determine if the lines are parallel, perpendicular, or neither.
andrey2020 [161]

Answer:

8x-7y=6

or, -7y=-8x+6

or, y=8x/7-6/7

so the slope is 8/7

8x-y=-8

or, -y=-8x-8

or, y=8x+8

So the slope is 8

Both has different slope and they don't satisfy the property of being perpendicular to each others, so they're neither parallel nor perpendicular.

Answered by GAUTHMATH

3 0
3 years ago
1. What is the best estimate for the<br> product of 37 and 19?
Tomtit [17]

Answer: 800.

Step-by-step explanation: Round them both to the nearest ten. That is 40x20.

6 0
3 years ago
Read 2 more answers
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