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Shalnov [3]
3 years ago
11

2X +12 equals 13 X minus P

Mathematics
1 answer:
LiRa [457]3 years ago
4 0
(2x + 3)(x + 5) = x

Reorder the terms:
(3 + 2x)(x + 5) = x

Reorder the terms:
(3 + 2x)(5 + x) = x

Multiply (3 + 2x) * (5 + x)
(3(5 + x) + 2x * (5 + x)) = x
((5 * 3 + x * 3) + 2x * (5 + x)) = x
((15 + 3x) + 2x * (5 + x)) = x
(15 + 3x + (5 * 2x + x * 2x)) = x
(15 + 3x + (10x + 2x2)) = x
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A truck carries apples, grapes, and blackberries in the ratio of 4:3:4 if the apples weigh 160 pounds, how much the the truckloa
aleksandrvk [35]

Answer:

440 lbs

Step-by-step explanation:

4:3:4

If the apples (four) are 160 pounds, then one unit is 40 pounds. There are eleven such units, and 40 times 11 is 440.

Btw, you should ask your friends or family for help before coming here. This sounds like sixth or seventh grade math, and in those grades, I asked my friends for help, and then when I wanted conformation, then I went online

just a suggestion :)

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3 years ago
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Answer:

1 and 2 go in the 2nd area and 3 gos to the 1st and 4th gos to the last one

Step-by-step explanation:

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3 years ago
Explain how counting number of girls in five children family can be treated as a binomial experiment. What assumptions are neces
Juliette [100K]

This is a binomial experiment and you'll use the binomial probability distribution because:

  1. There are two choices for each birth. Either you get a girl or you get a boy. So there are two outcomes to each trial. This is where the "bi" comes from in "binomial" (bi means 2).
  2. Each birth is independent of any other birth. The probability of getting a girl is the same for each trial. In this case, the probability is p = 1/2 = 0.5 = 50%
  3. There are fixed number of trials. In this case, there are 5 births so n = 5 is the number of trials.

Since all of those conditions above are met, this means we have a binomial experiment.

Some textbooks may split up item #2 into two parts, but I chose to place them together since they are similar ideas.

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6 0
3 years ago
Park two has 12 more benches than Park one. If 2 benches were transferred from Park two to Park one, then Park two would have 2
marta [7]

Answer:

There were 6 benches in park 1 and 18 benches in park 2.

Step-by-step explanation:

Let x be the no of benches in Park 1 and y in park 2.

Given that there are 12 more benches in park 2 than 1

Writing this in equation form, we have y = x+12 ... i

Next is if 2 benches were transferred from park 2 to park 1, then we have

x+2 in park 1 and y-2 in park 2.

Given that y-2 = twice that of x+2

Or y-2 = 2x+4 ... ii

Rewrite by adding 2 to both sides of equation ii.

y = 2x+6 ... iii

i-iii gives 0 = -x+6

Or x =6

Substitute in i, to have y = 6+12 = 18

Verify:

Original benches 6 and 18.

18 = 6+12 hence I condition is satisfied

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II is also satisfied.

6 0
3 years ago
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