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geniusboy [140]
3 years ago
10

On your own paper, solve the system of equations using elimination and identify the solution. Always list your answer alphabetic

ally in order pairs.
5e + 4f=9
4e+5f=9

A.(2,2)
B.(1,1)
C.(,1,-1(
D.(-2,-2)
E.IMS
F,NS
Mathematics
1 answer:
Oksana_A [137]3 years ago
4 0
5e + 4f = 9....multiply by -4
4e + 5f = 9 ...multiply by 5
------------------
-20e - 16f = -36 (result of multiplying by -4)
20e + 25f = 45 (result of multiplying by 5)
----------------add
9f = 9
f = 9/9
f = 1

5e + 4f = 9
5e + 4(1) = 9
5e + 4 = 9
5e = 9 - 4
5e = 5
e = 5/5
e = 1

solution is (1,1)


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Which statement best explains why the value of this expression is equal to −812y? 414x − 812y − 414x
GarryVolchara [31]
For this case we have the following expression:
 414x - 812y - 414x
 Rewriting we have:
 414x - 414x - 812y
 We group similar terms:
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 Adding we have:
 0 - 812y
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 Answer:
 
The sum of a number and its opposite is 0, and the sum of any number and 0 is the number itself.
5 0
3 years ago
A group of friends wants to go to the amusement park. They have no more than $320 to spend on parking and admission. Parking is
Hunter-Best [27]

A group of friends wants to go to the amusement park. They have no more than $320 to spend on parking and admission. Parking is $9.25, and tickets cost $28.25 per person, including tax. Write and solve an inequality which can be used to determine p, the number of people who can go to the amusement park.​

___________________________________________

Please, give me some minutes to take over your question

________________________

They have no more than $320 to spend on parking and admission

320 ≥ 9.25 + 28.25*p

9.25 + 28.25*p ≤ 320

320- 9.25 ≥ 28.25*p

310.75/28.25 ≥ p

p ≤ 11

__________________________

Answer

The number of people who can go to the amusement park can be a maximum of 11 people (less than or equal to 11).

8 0
1 year ago
-5x=10 plz no links thanks
Yakvenalex [24]

Answer:

2

Step-by-step explanation:

2x5=10

6 0
3 years ago
Read 2 more answers
Help me asap!!!!! Very important!!
frozen [14]

Answer:

  • strong negative linear correlation
  • -0.986

Step-by-step explanation:

You need to notice that when altitude goes up, temperature goes down. That means the correlation is negative.

The table shows the temperature decrease to be monotonic (nowhere does it go up when altitude increases), so the correlation is strong.

The strong negative correlation number available to you is -0.986.

___

If you want confirmation, you can put the numbers into your favorite graphing calculator and tell it to compute the correlation for you.

4 0
3 years ago
The sum or difference of p and q is the of the x-term in the trinomial.​
babymother [125]

Answer:

coefficient..........

4 0
2 years ago
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