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Elina [12.6K]
3 years ago
5

PLEASE HELP!! Why do we multiply equations by -1? For example, if you need to re-arrange 2x + y = 3 into the form of (y=mx+b)...

I got y = 3 - 2x but the answer is 2x - 3 (it is multiplied by one.)

Mathematics
1 answer:
MrRa [10]3 years ago
8 0

The thing is you need to get the equation equal to y so you need to add or substrate any number that is with y.but I don't think that's right.because I got this.

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253,248,243, find the 49th term.
denpristay [2]

Answer:

13

Step-by-step explanation:

the difference is -5

  • nth=a+(n-1)d
  • a=253,n=49,d=5
  • 253+(49-1)×-5
  • 253+48×-5
  • 253+(-240)
  • 253-240=13

the 49th term is 13

8 0
3 years ago
Point f lies between points g and m. gf =12x+4, fm=16 and gm =16x what is the value of x
Flura [38]

\underset{\leftarrow \qquad \text{\LARGE 16x}\qquad \to }{\stackrel{12x + 4}{G\rule[0.35em]{10em}{0.25pt}} F\stackrel{16}{\rule[0.35em]{16em}{0.25pt}M}} \\\\\\ \stackrel{GF}{12x+4} ~~ + ~~ \stackrel{FM}{16} ~~ = ~~ \stackrel{GM }{16x}\qquad \implies 12x+20=16x \\\\\\ 20=4x\implies \cfrac{20}{4}=x\implies 5=x

8 0
2 years ago
What is the probability of getting either a three or a club when drawing a single card from a deck of 52 cards?
frozen [14]
In a deck of cards, there are always four of each card. There are also 13 cards in each suit. This means that the probability is 13+4/52 which is <span>17/52

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4 0
3 years ago
I need help please be sure of your answer.
Ilia_Sergeevich [38]

Answer:

Step-by-step explanation:

The top has area (3 cm)(5 cm), or:                                 15 cm^2

The bottom has the same area:                                      15 cm^2

Each of the ends has the area (3 cm)(2.5 cm):                7.5 cm^2

                                                                                           7.5 cm^2

Each of the sides has the area (2.5 cm)(5 cm)                12.5 cm^2

                                                                                            12.5 cm^2

                                                                                        -------------------

                                                                                             70 cm^2

The total lateral area is 70 cm^2

                     

8 0
3 years ago
John deposited $2860 in a bank that pays 9% interest, compounded monthly. Find the amount he will have at the end of 3 years.
kati45 [8]
Please see figure for the answer.

3 0
3 years ago
Read 2 more answers
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