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vovikov84 [41]
4 years ago
15

What is the answer to: Factorise x^2 + 7x +12?

Mathematics
2 answers:
GuDViN [60]4 years ago
6 0

Answer:

(x + 3)(x + 4).

Step-by-step explanation:

Consider  x^2 + 7x + 12:

12 = 3 * 4 and 7 = 3 + 4 so the factors are

(x + 3)(x + 4).

Elina [12.6K]4 years ago
5 0

Answer:

(x + 4) ( x + 3)

Step-by-step explanation:

x² + 7x +12 = (x + 4) ( x + 3)

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Stephen spends 10% of his salary on food, 15% of it on transportation, and saves the remaining 2000. what is his salary?
Ber [7]

Answer:

His salary is $2666.68

Step-by-step explanation:

First add the percent of the costs.       10% + 15% = 25%

Then subtract 25% from 100% to find the percentage that 2,000 is of the total salary.                                                           100% - 25% = 75%

$2,000 is 75% of the total salary. Divide 2,000 by three to find the amount of money 25% of the salary is. ( 75% is 3/4 of 100)                                                         2,000 divided by 3 = $666.67

25% of the salary is $666.67

Multiple that by 4 and you get the total salary.

666.67•4= $2666.68

Are you sure those were all the correct numbers because that was not a very nice number at the end there lol but that answer is correct with the numbers you gave me.


5 0
4 years ago
3packs of soda is 10 dollars less than 5 packs of soda equation
RideAnS [48]
Ok. so lets call the cost of each soda x. now, 3 packs of soda is 10 less than five packs of soda. so the price of 3 packs of soda is 3x, the price of five packs is 5x. now, it says that 3 packs is 10 less than five packs. that means that 3x=5x-10.
now, to find the price of a pack of soda, we have to isolate x.
add 10 to both sides to get 3x+10=5x. now, we subtact 3x on both sides to get 10=2x. divide by 2 on both sides, x=5. a pack of soda is 5 dollars
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3 years ago
Suppose x, y, and z are all rational numbers. Is
umka2103 [35]
Yes number 1 yes yes
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Harry, Peter and 7 girls sit in a row. Harry can't sit in an end seat. In how many ways can they be arranged?
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4 years ago
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Answer:

this ven diagram is 4 u lol

Step-by-step explanation:

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