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3 years ago

PLZ HELP PLEASE ./////

Mathematics

1 answer:

Harrizon [31]3 years ago

3 0

Answer:

Step-by-step explanation:

The A

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What's 8÷5/9? I give brainliest <3

Crazy boy [7]

Answer:

$\frac{72}{5}$ , 14 $\frac{2}{5}$

Step-by-step explanation:

hope this helpsss :D

7 0

3 years ago

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One month rita rented 5 movies and 2 video games for a total of $26 . The next month she rented 3 movies and 8 video games for a

aleksandrvk [35]

<h3>Given</h3>

5 movies and 2 video games rent for $26
3 movies and 8 video games rent for $53

the rental cost of each

<h3>Solution</h3>

Let m and v represent the rental cost of a movie and a video game, respectively. The given information can be expressed in two equations:

... 5m +2v = 26

... 3m +8v = 53

Using Cramer's rule, we can find the solution to be

... m = (2·53 -8·26)/(2·3-8·5) = -102/-34 = 3

... v = (26·3-53·5)/-34 = 5.50

The rental cost for each movie is $3; for each video game is $5.50.

_____

The Vedic math variation of Cramer's Rule tells you the solution to

ax+by=c
dx+ey=f

is ...

x=(bf-ec)/(bd-ea)
y=(cd-fa)/(bd-ea)

6 0

3 years ago

Help me please thank you

vichka [17]

Answer: 3rd one

Step-by-step explanation:

5 0

3 years ago

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PLEASE HELD DUE IN AN HOUR WILL MARK BRAINLIEST

Talja [164]

Answer: See the attached image below for the dot plot

==============================================

Explanation:

The list

{50, 45, 24, 28, 27, 38, 21, 22, 23, 42, 41, 35, 37, 25, 43}

sorts to

{21, 22, 23, 24, 25, 27, 28, 35, 37, 38, 41, 42, 43, 45, 50}

Draw out a number line. Make sure to go as far down to 21 and as high as 50.

Then plot dots above the numbers 21, 22, 23,24,25,27,28, etc. Each item in the sorted list will get a dot overhead. In this case, there are no repeated items, so each stack is 1 dot high.

See the diagram below.

You may need to click on the magnifying glass if the diagram is either too small or distorted.

5 0

3 years ago

Help pleaseee, I’ll give brainly!

Gnesinka [82]

Answer:

1) 6r+7=13+7r —> 7r–6r=7–13 —> r = – 6

2) 13–4x=1–x —> 4x–x=13–1 —> 3x=12 —> x=12/3 —> x=4

3)–7x–3x+2=–8x–8 —> –8x+7x+3x=2+8 —> 2x=10 –> x= 10/2 –> x= 5

4)–8–x=x–4x —> –x–x+4x=8 —> 2X=8 —> x= 8/2 —> x= 4

5) –14+6b+7-2b=1+5b —> 5b +2b –6b = –14+7–1 —> b=–8

6) n+2=–14–n —> n+n=–14–2 —> 2n = –16 —> n = – 16/ 2 —> n = – 8

7) n – 3n = 14 –4n —> n –3n + 4n = 14 —> 2n = 14 —> n = 14/ 2 —> n = 7

8) 7a – 3 = 3 + 6a —> 7a – 6a = 3 + 3 —> a = 6

9) 3(1–3x ) =2(–4x+7) —> 3 –9x = –8x+14 —> 9x–8x = 3–14 —> x = –11

10) –10 +x+4–5 =7x –5 —> 7x–x = –10+4–5 +5 —> 6x = –6 —> x= –6/6 —> x = –1

11) –8n +4(1+5n)=–6n–14 —> –8n +4 + 20n = – 6n– 14

20n –8n +6n= –14 –4 —> 18n = – 18 —> n = –18/18 —> n = –1

12) –6n–20=–2n +4(1–3n) —> –6n –20 = – 2n +4 –12n —> 12n +2n –6n = 4 +20 —> 8n =24 —> n = 24/8 —> n =3

I hope I helped you^_^

3 0

3 years ago

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