3 years ago

Two equivalent fractions for 10/2

Mathematics

1 answer:

Mashutka [201]3 years ago

3 0

The possible answer is 1/5 and 4/20

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Prove that: (12^13–12^12+12^11)(11^9–11^8+11^7) is divisible by 3, 7, 19, and 37. The answer should be like: x^b*3*7*19*37. Also

n200080 [17]

Answer:

Step-by-step explanation:

Given (12^13–12^12+12^11)(11^9–11^8+11^7),

(12^13–12^12+12^11)(11^9–11^8+11^7) =

[(12^12)12 – 12^12 + 12^11][(11^8)11 – 11^8 + 11^7)

[(12^12)(12 – 1) + 12^11][(11^8)(11 – 1) + 11^7] =

(12^12(11) + 12^11)(11^8(10) + 11^7) =

(12^11(12x11) + 12^11)(11^7(11x10) + 11^7) =

[(12^11)(12x11 + 1)][(11^7)(11x10 + 1)] =

[(12^11)x(11^7)](12x11 + 1)(11x10 + 1) =

[(12^11)x(11^7)](133 x 111) =

[(12^11)x(11^7)](14763) =

[(12^11)x(11^7)](3x7x19x37)

From here, it is clear that the given number is divisible by 3, 7, 19 and 37.

6 0

3 years ago

5. A company intends to collect a random sample of size n from a population

Katarina [22]

Answer:D

Step-by-step explanation:

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3 years ago

Solve for x 26=3x+2x-9

umka2103 [35]

Combine like terms on the right side:

$3x + 2x = 5x$
$26 = 5x - 9$

Add 9 to both sides:

$35 = 5x$

Divide both sides by 5 to get x by itself:

$x = 7$

The value of x is 7.

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4 years ago

If I buy something for $25.40 with 15% tax, what would it be?

KonstantinChe [14]

25.40

divide by 10 for 10%: 2.54

divide it by 2: 1.27

add 2.54 and 1.27: 3.81

add the 2 numbers together: 25.40+3.81= $29.21

Your answer is $29.21

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3 years ago

What is 1x + 2x = 4x

lubasha [3.4K]

Answer:

The answer should be x=0, hope this helps:)

7 0

3 years ago

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