2 years ago

PLEASE ITS MY LAST QUESTION IM ALMOST DONE HELPPP

Mathematics

2 answers:

arlik [135]2 years ago

6 0

They took $10 from 10 people that saw and wanted to try the ad.

Komok [63]2 years ago

6 0

Pretty sure it is C because the first 10 are random people, it is not D. A has nothing to do with it and b also has nothing to do with it.

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The difference between two numbers is 3. Their sum if 27. What is the smaller number?

posledela

Answer:

Step-by-step explanation:

12 + 15 = 27

15 - 12 = 3

therefore the answers should be 12 becuase 12 is smaller than 15

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Answer:

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sergiy2304 [10]

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Step-by-step explanation:

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1 year ago

How many solutions does the equation x_1 +x_2+x_3+x_4+x_5=21 have where x_1, x_2, x_3, x_4, and x_5 are nonnegative integers and

omeli [17]

Step-by-step explanation:

$x_{1} + x_{2} + x_{3} + x_{4} + x_{5} = 21\\$ (given)

Let us consider :

$x_{1}$ = $t_{1} + 1$

$x_{2}$ = $t_{2}$

$x_{3}$ = $t_{3}$

$x_{4}$ = $t_{4}$

$x_{5}$ = $t_{5}$

Now, by substituting the above considerations in the above equation, we get:

$t_{1} + 1 + t_{2} + t_{3} + t_{4} + t_{5} = 21\\$

$t_{1} + t_{2} + t_{3} + t_{4} + t_{5} = 20\\$

where,

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then it follows

n = 20

r = 4

then no. of solutions for the eqn = $_{r}^{n + r}\textrm{C}$

= $_{4}^{24}\textrm{C}$

= 10626

Answer :

no. of solutions for the eqn 10626

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