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Art [367]
3 years ago
10

Solve the system by substitution

Mathematics
1 answer:
Tatiana [17]3 years ago
8 0

Answer:

(x,y) = (-36,6)

Step-by-step explanation:

-6y=x

x+y=-30

x=-6y,

so -6y+y=-30

-5y=-30

y=6

x=-36

Hope this helps pls hit the crown :D

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What is the length of the midsegment of the trapezoid
makkiz [27]

Answer:

The length of the mid-segment of the trapezoid = 7

==================================================

Step-by-step explanation:

The mid-segment of a trapezoid is the segment that connecting the midpoints of the two non-parallel sides.

As shown in the figure the two non-parallel sides are AB and CD

∴ The mid-segment of the trapezoid = \frac{BC +AD}{2}

From the figure: BC = 8  and AD = 6

∴ The mid-segment of the trapezoid = \frac{8+6}{2} = 7

7 0
4 years ago
1 2/7 +2 1/3x +3/14+x=9
Genrish500 [490]

Answer:

9/4

Step-by-step explanation:

1 2/7=9/7

2 1/3=7/3

--------------

9/7+7/3x+3/14+x=9

18/14+3/14+7/3x+3/3x=9

21/14+10/3x=9

10/3x=9-21/14

10/3x=9-3/2

10/3x=18/2-3/2

10/3x=15/2

x=(15/2)/(10/3)

x=(15/2)(3/10)

x=45/20

simplify

x=9/4

8 0
3 years ago
when using a counterexample to prove a conditional statement false, which must be true about the counterexample?
bagirrra123 [75]
The science of correct reasoningLogicThe drawing of inferences or conclusions from known or assumed factsReasoningUses observations and patterns to arrive at a conclusion (conjecture)Inductive reasoningUses facts, rules, definitions, or properties to arrive at a conclusionDeductive reasoningA statement that can be written in if-then formConditional statementConditional statement symbol-->The opposite meaning of the original statementNegationsA statement, example, figure, etc... that proves that a statement is falseCounterexamplesIf you live in florida, then you live in miamiFalse; counterexampleWith counterexamples you should not correct the statement and give an example of why the statement is falseTrueAll true statement do have counterexamplesFalse they do notConditional symbolp-->qSwitch the hypothesis and conclusionConverseConditional and the converseBiconditional statementsJoins the conditional and converse into one statement<span>Bionditional statements</span>
3 0
4 years ago
Please help been stuck on this for 40 minutes
choli [55]

we have given y interms of x.

we have given that add 2 to x.

which means y=x+2

so we have x=2 ,y=x+2=2+2=4.

so when x=2 ,y=4.

x=4,y=x+4=4+2=6..

y=x+2,y=6+2=8.

3 0
3 years ago
Read 2 more answers
Help pleaseeeeeee!!!!!!
Archy [21]

Answer:

5x + 100

Step-by-step explanation:

(2x + 6) x 2 = 4x + 12

14x + 8 - 4x + 12 =

10x + 20 / 2 =

5x + 100

Hope that helps!

3 0
3 years ago
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