3 years ago

I need help with solving this question with the elimination method since my teacher didn’t explain lol

Mathematics

1 answer:

zavuch27 [327]3 years ago

3 0

Answer:

*itccyohchcuvojvibbib

there u go :)

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What is the joint relative frequency for 11th graders who want the break in the afternoon? Round to the nearest percent.

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3 years ago

Use the arithmetic sequence of numbers 1, 3, 5, 7, 9,.to find the following:

Rasek [7]

$a)\\\\
a_{n+1}-a_n=d\\
for\ n=1\\
a_2-a_1=d\\
d=3-1=2\ - difference\ between\ two\ consecutive\ terms\\\\
b)\\
a_n=a_1+(n-1)d\\
n=101\\
a_{101}=1+(101-1)*2\\
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c)\\
Sn=\frac{a_1+a_n}{2}*n\\
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6 0

3 years ago

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Andreas93 [3]

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3 years ago

Arranging like terms; solve the linear system using eliminationlly - 3x = 18- 3x = -16y + 33

DENIUS [597]

Solution

For this case we can do the following:

11y - 3x = 18

16y -3x = 33

We can multiply the first equation by -1 and we got:

-11y +3x =-18

16y -3x = 33

_______________

16y -11y = 33-18

5y = 15

y= 15/5 = 3

And then solving for x we got

x = -(18 -11*3)/ 3= -15/3 = 5

8 0

1 year ago