3 years ago

2x+10 5x-15 8x+6 2x-8

Mathematics

1 answer:

statuscvo [17]3 years ago

5 0

x= 7/13. Hope I helped you !!!!

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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

4 0

3 years ago

The average cost per car crash in Thousand Oaks was $1,599 in 2014. Suppose this average cost was based on a sample of 50 person

artcher [175]

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5 0

3 years ago

Let f(x)= -5x+10 then f(-2)=<br><br> Simple functions

valentina_108 [34]

F(x) = -5 x + 10
Then
f(-2) = -5(-2) + 10
= 10 + 10
= 20

8 0

3 years ago

Read 2 more answers

How do I solve this problem?<br> -17=2x+7

Airida [17]

Answer
x=-12
Explanation

Move the terms
-17-2x=7

Add the numbers
-2x=24

Divide both sides of the equation by -2
x=-12

Hope this helps:)

4 0

3 years ago

CAN SOMEONE PLEASE HELP AND EXPLAIN THIS

lord [1]

Answer:

what are the options? I'll say it in the comments

7 0

3 years ago

Read 2 more answers