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Effectus [21]
3 years ago
15

How to simplify the expresson s(8-2t)+3t(4-2s)+5t

Mathematics
2 answers:
gogolik [260]3 years ago
5 0
We'll expand it to see what we have:

8s-2st+12t-6st+5t

17t-8st+8s
Vitek1552 [10]3 years ago
3 0
The answer would be 8s-4ts+17t
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WILL GIVE ALL MY POINTS working alone, machine a takes 2 hours to build a car, working alone machine b takes 3 hours to build a
kati45 [8]

Answer:

It will take Machine A 20 additional minutes.

Step-by-step explanation:

First we have get the rate of work per hour, Machine A builds 1/2 of a car per hour, while Machine B builds 1/3 of a car per hour.

Using this we can determine the amount of work that has been done so far in one hour before Machine B broke down:

1/2 + 1/3 = 3/6 + 2/6 = 5/6

Now we can produce an equation accordingly to determine how much time it'll take machine a to finish the job:

5/6 + 1/2x = 1

1/2x = 1/6

x = 1/3 hours = 20 minutes

Note: In the question you typed "how much additional time will it take machine b to finish" but I think you meant machine a because machine b broke down. Please correct me if I'm wrong.

Hope this helps! And let me know if you have any questions!

7 0
3 years ago
Coefficient x^2 in the expansion of (2+x)^5
Monica [59]
Alright, expand the given equation:
(2+x) (2+x) (2+x) (2+x) (2+x)
Use FOIL method and distribution to solve
At the final answer, find the x^2 and the number that multiplies to it is the coefficient
I can't do the actually expansion for you, it would take a decently long time. You should be able to, its a good practice. Good luck!
7 0
3 years ago
Find the 11th term of this sequence. -10,20,-40,80...
Morgarella [4.7K]
The difference is not constant therefore there cannot be an 11th term that is correct.

6 0
4 years ago
Read 2 more answers
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Answer: He bought 6 pounds of coffee.

Step-by-step explanation:

Money he have = 70

money he used to buy = 70.00 - 23.62 = 46.38

so

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46.38 dollar = (100/773) * 46.38 = 6 pound

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