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iren [92.7K]
3 years ago
14

–4r − 10r + –5 = –19

Mathematics
1 answer:
defon3 years ago
5 0

Answer:

r=1

Step-by-step explanation:

-4 r -10r + -5= -19

-4r + (-10r) + -5=-19

-14r+ -5 = -19

-14r + -5 +5= -19+5

-14r= -14

r=1

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Can someone explain this please???
xeze [42]

A function is a rule that assigns exactly one output to a given input. The input is taken from a set called the domain, and the corresponding output belongs to a set called the range.

1. In this exercise, we're calling the pool of patients 1-8 the domain, and the pool of nurses A-D the range. The given table describes a function because any patient is assigned to only one nurse.

2. This wouldn't be a function if at least one patient was assigned to more than one nurse. If this were to happen in practice, the patient could be, say, given the same dose of some medicine twice if the nurses aren't careful.

3. Making the nurse pool the domain and the patient pool the range would give a relation that is not a function, since more than one patient is assigned to one nurse.

4 0
3 years ago
A piece of paper is in the shape of a rectangle. The piece of paper is 1 5/8 inches (in.) wide and 8 3/4 in. long
Alexandra [31]

Answer:

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3 0
3 years ago
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TiliK225 [7]
Since there is no decimal point, the answer is 345276.
8 0
3 years ago
Read 2 more answers
Can anyone help without using reciprocal?
vova2212 [387]

Answer:

x = -5/3

Step-by-step explanation:

-4 = \dfrac{20}{3}x

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3 0
2 years ago
A 54-foot piece of siding is cut into three pieces so that the second piece is three times as long as the first piece and the th
LiRa [457]

Answer:

The lenght of the first piece is 6 feet.

The lenght of the second piece is 18 feet.

The lenght of the third piece is 30 feet.

Step-by-step explanation:

Let be:

x the lenght of the first piece (in feet).

3x the lenght of the second piece (in feet).

5x the lenght of the third piece (in feet).

You know that the total lenght of the  piece of siding is 54 feet. This means that:

x+3x+5x=54

Having this expression, you can solve for "x":

9x=54\\\\x=\frac{54}{9}\\\\x=6

Therefore, the lenght of the first piece is 6 feet.

Then:

3x=3(6)=18 (The lenght of the second piece is 18 feet)

5x=5(6)=30 (The lenght of the third piece is 30 feet)

6 0
3 years ago
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