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3 years ago

Alfie buys two books, each at the same price. He pays with a £10 note and gets £2.30 change.

1 answer:

7 0

First subtract the amount he paid from the amount of change he got:

10 - 2.30 = 7.70

So the price for the two books was £7.70, now divide by 2.

7.70 / 2 = 3.85

So each book cost £3.85

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Use the construction in proof of the Chinese reminder theorem to find all solutions to the system of congruence:

antoniya [11.8K]

Answer:

17,101,185, 269,.... is the solution.

i.e. x≡17 mod(84) is the solution

Step-by-step explanation:

Given that the system is

$x ≡ 2 ( mod 3 )x ≡ 1 ( mod 4 )x ≡ 3 ( mod 7 )$

Considering from the last as 7 is big,

possible solutions would be 10,17,24,...

Since this should also be 1(mod4) we get this as 1,5,9,...17, ...

Together possible solutions would be 17, 45,73,121,....

Now consider I equation and then possible solutions are

5,8,11,14,17,20,23,26,29,...,47,....75, ....

Hence solution is 17.

Next number satisfying this would be 101, 185, ...

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Answer:

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Step-by-step explanation:

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3 years ago

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Answer:

x will equal 2.1

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Rina8888 [55]

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2 years ago

You solved a linear system with two equations and two variables and got the equation o=-8. how many solutions does the system of

Luda [366]

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If the final equation is a true equation, like 3=3, then the system has an infinite number of solutions (the equations graph the same line, and all points appear on both graphs)

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