3 years ago

-3x + 5.5x + 4 = 7.2

Mathematics

1 answer:

GrogVix [38]3 years ago

4 0

Answer:

1.28

Step-by-step explanation:

x = 1.28

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Suppose that 11% of people own dogs. If you pick two people at random, what is the probability that they both own a dog

Amiraneli [1.4K]

Twenty two percentage

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2 years 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,

$t_{i}$ $\geq$ 1

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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3 years ago

35percent as a fraction in simplest form

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Step-by-step explanation:

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melisa1 [442]

2x + 2(5+x)=10
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the answer is

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