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Romashka [77]
2 years ago
7

The product of 2r- t and 5m + 3=

Mathematics
1 answer:
DaniilM [7]2 years ago
7 0

Answer: 10rm+6r-5tm-3t

Step-by-step explanation:

(2r-t)(5m+3)\\\\=10rm+6r-5tm-3t

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Help plz brainliest for first answer and best answer
Leto [7]

Answer:

C.15

Step-by-step explanation:

one box has 5 chocolates so 3*5=15

7 0
3 years ago
Please explain your answer! Which of the following best represents time preference?
igomit [66]

Answer:

B.  Alex smokes a pack of cigarettes per day even though he knows that he may face poor health down the road because of his smoking habit.

Step-by-step explanation:

Time preference means that the person would like to have temporary but instant satisfaction. In this case, B would be the best choice, for Alex wants to experience the "high" (I guess?) from smoking, even when he knew that there would be health consequences down the road.

In this case, it is not:

A, for Thomas is not going to receive his reward (a profit from the investment) until later on. The money he invest is still "there", but it is technically gone into investment.

C, because this is assuming that retirement is a long way off, and that this would be a long-term investment, rather than a short term.

D, this is a long-term investment, as Sarah "hopes" that she can earn it all back in the future. With what she learns, she, in the long run, wants to find a sustainable & high-paying job.

~

4 0
3 years ago
40 is 20% of x. If x is 80% of y, then what is the sum of x and y?
Tanzania [10]

40 is 20% of x

40 = .2 * x

40/.2 = x

x =200


x is 80% of y

x = .8 * y

200 = .8 *y

200/.8 = y

250 =y


x+y

200+250

450


5 0
3 years ago
Three planets are in line and are orbiting round a sun, one take 1 week to orbit the sun another takes 9 weeks and the other tak
patriot [66]

Answer:

27 weeks.

Step-by-step explanation:

You need to calculate the minimun common multiple between the three times.

1 week = 1^1 week

9 weeks = 3^2 weeks

27 weeks = 3^3 weeks

You take the 1 and the 3 with the biggest exponent and multiply. In this case is 1^1*3^3 = 27. So, in 27 weeks the pkanets will all be in alignment.

7 0
3 years ago
Which angle is a corresponding angle to 8?
marta [7]

Answer:

angle 1 (the last option)

Step-by-step explanation:

hope this helps!

3 0
3 years ago
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