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3 years ago

15 POINTS HELP ME PLEASE!!!

Mathematics

2 answers:

Alexxx [7]3 years ago

6 0

-8a-6-10a-2+5a
-18a-6-2+5a
the answer is -13a-8

second

6x-4+3x+8
9x-4+8
the answer is 9x-4

mars1129 [50]3 years ago

4 0

Answer:

-13a -8

9x+4

Step-by-step explanation:

-8a + (-6)- 10a - 2 + 5a

-8a -10a +5a -6-2

Combine like terms

-18a +5a -8

-13a -8

6x - 4 + 3x + 8

6x+3x -4+8

Combine like terms

9x+4

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In the slope - intercept equation of a line which quantity is given by the coefficient of the term x-term?

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Read 2 more answers

RS=2x-8, ST = 11, RT = x+10

ziro4ka [17]

Answer:

$Equation~=~\Large\boxed{2x+3=x+10}$

$x~=~\Large\boxed{7}$

$RS~=~\Large\boxed{6}$

$RT~=~\Large\boxed{17}$

Step-by-step explanation:

Given information

$RS=2x-8$

$ST=11$

$RT=x+10$

Derived expression from the given information

Presumably, I think this is a combination of segments

$RS+ST=RT$

Substitute values into the given expression

$(2x-8)+(11)=(x+10)$

Combine like terms

The following is the expression

$\Large\boxed{2x+3=x+10}$

Subtract 3 on both sides

$2x+3-3=x+10-3$

$2x=x+7$

Subtract x on both sides

$2x-x=x+7-x$

$\Large\boxed{x=7}$

Substitute the x value into corresponding expressions to determine the final value

$RS=2x-8=2(7)-8=14-8=\Large\boxed{6}$

$RT=x+10=(7)+10=\Large\boxed{17}$

Hope this helps!! :)

Please let me know if you have any questions

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Step-by-step explanation:

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