2 years ago

By how much is 3 4/5 greater than the product of 3/5 x 1 3/4

Mathematics

1 answer:

dalvyx [7]2 years ago

7 0

Answer: 6.65

Step-by-step explanation:

3 4/5 = 3.8

1 3/4 = 1.75

3.8*1.75= 6.65

Hope it helps <3

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PtichkaEL [24]

Answer:

y=10, x=7

Step-by-step explanation:

Since the diagonals of a parallelogram bisect each other, PT should be equal to TR and QT should be equal to TS. So, y=x+3 and 2y=3x-1. Multiplying the first equation by 3 gives you 3y=3x+9. Using elimination to subtract these two equations gives you y=10. And since y=x+3, substitute y=10 there. 10=x+3, x=7.

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natta225 [31]

Answer:

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Step-by-step explanation:

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jenyasd209 [6]

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Step-by-step explanation:

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3 years ago

The Johnson twins were born four years after their older sister. This year, the product of the three siblings ages is exactly 34

svp [43]

Answer:

Step-by-step explanation:

Let age of each twin be x

let age of sister be s

So we can write:

x + 4 = s

The product of the 3 siblings ages is 3482 more than sum. We can write:

$s*x*x=3482+(s+x+x)$

This can be simplified as:

$sx^2=3482+s+2x$

We replace s with "x + 4" and solve:

$(x+4)x^2=3482+x+4+2x\\x^3+4x^2=3486+3x\\x^3+4x^2-3x-3486=0\\x=14$

<u>Note:</u> To solve this cubic, we used technology

Thus, we can say the twins are 14 years old

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