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Elena L [17]
3 years ago
5

Solve the system of equations by elimination: −5x+y+5z=27 5x+5y−4z=−12 −6y−z=−16

Mathematics
1 answer:
VladimirAG [237]3 years ago
7 0

Answer:

no asnwer

Step-by-step explanation:

first step:

-5x+y+5z=27

+ 5x+5y-4z=-12

which is

6y+z=15

add -6y-z=-16

which will be 0=-1

this means that there is no answer and that the statement is false.

hope this helped!

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X + 18 greater than or equals 26
cricket20 [7]

Answer:

x + 18 ≥ 26

Step-by-step explanation:

"greater than or equals": ≥

x + 18 ≥ 26 is your answer.

If you are trying to solve it so you isolate x, subtract 18 from both sides:

x + 18 (-18) ≥ 26 (-18)

x ≥ 26 - 18

x ≥ 8

x ≥ 8 is your answer.

~

5 0
3 years ago
Read 2 more answers
the amusement park charges a fee of $7.50 and $0.75 for every ride. the carnival charges a fee of $10.00 and$0.50 per ride. when
andrew11 [14]
A equation to represent this situation is:

0.75x+7.50=0.50x+10.00

Now we have to find x.

Step 1: Subtract 0.5x from both sides.

<span><span><span><span>0.75x</span>+7.5</span>−<span>0.5x</span></span>=<span><span><span>0.5x</span>+10</span>−<span>0.5x</span></span></span><span><span><span>0.25x</span>+7.5</span>=10

</span>Step 2: Subtract 7.5 from both sides.

0.25x+7.5−7.5=10−7.50.25x=2.5

Step 3: Divide both sides by 0.25.

<span><span><span>0.25x/</span>0.25</span>=<span>2.5/<span>0.25

</span></span></span>Answer:

<span>x=<span>10</span></span>
They will cost the same after 10 rides.


 
3 0
3 years ago
What is the domain and range of the graph?
I am Lyosha [343]

Answer:5/8

Step-by-step explanation:

I just need more Brainly points

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Find the area and perimeter of the shape below. Show your work.
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Peter walked for 2/5 mile to Fred's house and then 1/2 mile to the park. How can he write 2/5 and 1/2 as pair of fractions with
andre [41]
4/10 and 5/10 i think unless i totally failed
6 0
3 years ago
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