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GuDViN [60]
3 years ago
5

X-y=11 if x=4 wat is y

Mathematics
1 answer:
Nata [24]3 years ago
4 0
Let's see this original ewuation:
x-y=11
1) Substitute 4 in for x: 4-y=11
2)Subtract 4 from both sides. This cancels out four. (4-4)-y=11-4
3)Cancel: -y=7
4)Multiply both sides by negative 1:-1*-y=11*-1 \\ y=-11

y=-11
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svlad2 [7]

Answer:

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Step-by-step explanation:

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x(2x^2-5x+1)-3(2x^2-5x+1)\\

Multiplication will give us:

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The product is: 2x^3-11x^2+16x-3

Hence, third option is the correct answer ..

4 0
3 years ago
Read 2 more answers
How many multiples of 4 are there in {n; 37< n <1001}?
s2008m [1.1K]
Let's begin by listing the first few multiples of 4:  4, 8, 12, 16, 20, 24, 28, 32, 36, 38, 40, 44.  So, between 1 and 37 there are 9 such multiples:  {4, 8, 12, 16, 20, 24, 28, 32, 36}.  Note that 4 divided into 36 is 9.

Let's experiment by modifying the given problem a bit, for the purpose of discovering any pattern that may exist:

<span>How many multiples of 4 are there in {n; 37< n <101}?  We could list and then count them:  {40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100}; there are 16 such multiples in that particular interval.  Try subtracting 40 from 100; we get 60.  Dividing 60 by 4, we get 15, which is 1 less than 16.  So it seems that if we subtract 40 from 1000 and divide the result by 4, and then add 1, we get the number of multiples of 4 between 37 and 1001:

1000
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Dividing this by 4, we get 240.  Adding 1, we get 241.

Finally, subtract 9 from 241:  We get 232.

There are 232 multiples of 4 between 37 and 1001.

Can you think of a more straightforward method of determining this number? </span>

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3 years ago
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3 years ago
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Answer:

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Step-by-step explanation:

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