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Natali5045456 [20]
3 years ago
8

I need help with substitution and elimination.

Mathematics
1 answer:
Brrunno [24]3 years ago
6 0
To sum it up? or what?
You might be interested in
i need help. Semir, Sarah, and SungSo decided to raise money for a local homeless shelter by working in a local deli. The deli a
IgorLugansk [536]
According to the question, 
Let,
"n" represent the number of miles semir walked.
"y" represent the number of miles sarah walked.
Now, according to the question,

y = 2n - 5  ........................this is your equation 
Also,
the question states, each of them collect $18 in pledges for every miles walked.

Given,
Sarah collected $450
Now, 

Using unitary method,

Sarah collects $18 for 1 mile
Sarah collects $1 for (1 / $18) mile
Sarah collects $450 for (1 / 18) * 450 mile
                                   = 25 miles
So, Sarah walks 25 miles.
Now,
Taking equation,
y = 2n - 5
Since, y is the no. of miles sarah walked, we can write 25 in place of "y" So,
(25) = 2n - 5
25 + 5 = 2n
30 = 2n
30 / 2 = n
15 = n

Since, "n" is the no. of miles that semir walked, Semir walked 15 miles.


7 0
4 years ago
What is x? 30=5(z+1)
Troyanec [42]

Answer: 5

B/c 5+1= 6 and 5 times 6 is 30

5 0
3 years ago
Of the 30 cars in a parking lot, 12 are blue, 8 are red, 6 are white, and 4 are silver. In simplest form, what are the odds in f
Radda [10]

Answer:

Step-by-step explanation:

8+6=14

14/30 = 7/15

So the final answer is 7/15

pls thank me pls :(

3 0
2 years ago
My last question and I need to get it right, im trynna go sleep already y’all help a brother out plz
Lera25 [3.4K]

Answer:

37

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is (20-(-16))=20+16=36
Anna71 [15]

Answer:

Step-by-step explanation:

i think its 5/144=0.03472

4 0
3 years ago
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