4 years ago

Describe and correct the error a student made in writing the system of inequalities represented by the graph show below.

Mathematics

1 answer:

chubhunter [2.5K]4 years ago

4 0

Answer:

that student made a error on his graph because the equation y<0.5x+1 doesn't show.

Step-by-step explanation:

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For the following system, if you isolated x in the first equation to use the substitution method, what expression would you subs

alekssr [168]

Answer:

$x=2y+6$

Step-by-step explanation:

So we have the system:

$-x+2y=-6\\3x+y=8$

If we isolate the x-variable in the first equation:

$-x+2y=-6$

Subtract 2y from both sides:

$-x=-6-2y$

Divide both sides by -1:

$x=2y+6$

Therefore, we would substitute the above into the second equation:

$3x+y=8\\3(2y+6)+y=8$

The answer is 2y+6

Further notes:

To solve for the system, distribute:

$6y+18+y=8$

Simplify:

$7y+18=8$

Subtract:

$7y=-10$

Divide:

$y=-10/7\approx-1.4286$

Now, substitute this value back into the isolated equation:

$x=2(-10/7)+6\\x=-20/7+42/7\\x=22/7\approx3.1429$

3 0

3 years ago

Read 2 more answers

True or False Atomic theory has changed over time

jolli1 [7]

Answer:

True

Step-by-step explanation:

As modern science has advanced we're able to learn more about what makes up matter. Hope this helps :)

5 0

3 years ago

Help please this is due in a couple minutes!!!! Anyone know the answer??!!!?

givi [52]

Answer:

the second one

Step-by-step explanation:

correct me if it is wrong

7 0

4 years ago

Find the two values that are both 6 units away from 3.

MrMuchimi

3 +6=9 and 3-6 =-3. that’s all you need to do

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3 years ago

The number z times 4.5 is 6.75.

krok68 [10]

Z=1.5

need anymore help be sure to ask me :)

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