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ICE Princess25 [194]
3 years ago
9

What is this answer I don't get it guys help me out 5(x+5)=65

Mathematics
2 answers:
Arisa [49]3 years ago
5 0
5(x+5)=65
5x+25=65
    -25  -25
5x=40
x=8
blsea [12.9K]3 years ago
4 0
5(x+5)=65
5x+25=65
you subtract 25 from both sides.
5x+25-25=65-25
5x=40
you also divide both sides by 5
5x/5=40/5
 
x=8

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How do I find the domain range and function of the graph
Allisa [31]

Answer:

  D = {-3, -2, -1, 1, 4}

  R = {-5, -1, 0, 2}

Step-by-step explanation:

You have correctly described the process of finding the domain and range by the way you filled in the blanks at the top of the sheet.

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The domain is the set of x-values of the points on the graph:

  D = {-3, -2, -1, 1, 4}

The range is the set of (unique) y-values of the points on the graph:

  R = {-5, -1, 0, 2}

3 0
2 years ago
Marco has drawn a line to represent the perpendicular cross-section of the triangular prism. Is he correct? Explain. triangular
evablogger [386]

Answer:

The correct option is;

Yes, the line should be perpendicular to one of the rectangular faces

Step-by-step explanation:

The given information are;

A triangular prism lying on a rectangular base and a line drawn along the slant height

A perpendicular bisector should therefore be perpendicular with reference to the base of the triangular prism such that the cross section will be congruent to the triangular faces

Therefore Marco is correct and the correct option is yes, the line should be perpendicular to one of the rectangular faces (the face the prism is lying on).

8 0
3 years ago
Read 2 more answers
Dr. Keller has a bookcase in her office with three shelves each shelf has the same number of books on it there are 23 books on t
KiRa [710]

Answer:

69

Step-by-step explanation:

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7 0
3 years ago
the sum of the reversed number and the original number is 154. Find the original number, if the ones digit in it is 2 less than
VladimirAG [237]

Answer:

The number is 86

Step-by-step explanation:

Let the number be  xy, then the reverse is yx

The sum of the reversed number and the original number is 154,

\implies (10x+y)+(10y+x)=154

We simplify this to get:

\implies 11x+11y=154....eqn(1)

If the ones digit in it is 2 less than the tens digit, then

y=x-2....eqn(2)

Putt equation (2) in (1)

\implies 11x+11(x-2)=154

\implies 11x+11x-22=154

\implies 11x+11x=154+22

\implies 22x=176

\implies x=8

Put x=8 in the second equation:

y=8-2=6

The original number is 86

7 0
3 years ago
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Part A: Solve –mk – 90 > 85 for m. Show your work.
erma4kov [3.2K]

Answer:

A) m < -175/k and B) 3c/5 - 11

Step-by-step explanation:

A) Add 90 to both sides. -mk > 175.

Next, divide both sides by -k. Because you divide by a negative, don't forget to reverse the sign!

m < -175/k.

B) Subtract 3c from both sides.

-5f = 55 - 3c.

Now multiply both sides by -1/5.

f = 3c/5 - 11

7 0
3 years ago
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