2[s+3(s-31)]=18
how would i solve this

Answers

Answer 1

Answer: 1. 2[s+3(s-31)]=18
2. [s+3(s-31)] = 9
3. s+ 3s - 93 = 9
4. 4s = 9+93
5. 4s = 102
6. s= 25.5

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A machine needs 2 of its gears replaced. You find 2 gears, one manufactured 5 years ago and the other manufactured 10 years ago. The specifications sheet says that the chance of failure is 5% after 5 years and increases to 8% after 10 years. If the gears on the machine are in no way linked to each other, what are the chances that both will fail? Answer in % form.If someone could show me the steps I would really appreciate it! Thanks!!!

Answers

Probability that gear 1 will fail = 5/100 (upto 10 years)
and 8/100 (after 10 years)

Probability that both will fail = 5/100 * 8/100
= 40/10000
= 0.4 %

Answer:

0.4%.

Step-by-step explanation:

If the gears on the machine are not linked to each other, the probability that both replacement gears will fail is 0.4%.

Amira has $80. Sasha has $40. In how many months will they both have the same amount of money if Amira saves $40 per month and Sasha saves $50?

Answers

Given:
Amira = 80
Sasha = 40

Amira saves 40 per month
Sasha saves 50 per month

Let x be the number of months.
Amira = 80 + 40x
Sasha = 40 + 50x

Amira = Sasha
80 + 40x = 40 + 50x
40x - 50x = 40 - 80
-10x = -40
x = -40/-10
x = 4

Amira = 80 + 40x = 80 + 40(4) = 80 + 160 = 240
Sasha = 40 + 50x = 40 + 50(4) = 40 + 200 = 240

It would take them 4 months to have the same amount of savings.

Y'all I'm crying...help

Answers

Answer:

Below in bold.

Step-by-step explanation:

C1 = 180 - C2

= 180 - (170-2x)

= 10 + 2x

So B3 = 10+2x (alternate angles).

and B2 = 90 - B3

= 90 - (10 + 2x)

= 80 - 2x.

Many people seem to have trouble planning for retirement because it seems so far in the future true or false

Answers

true...is my guess \\\\\\\

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The answer S True. Hope this helps

Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x. f(x) = the quantity x minus seven divided by the quantity x plus three. and g(x) = quantity negative three x minus seven divided by quantity x minus one.