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Kaylis [27]
3 years ago
12

Solve the system of equations -5y+8y=-18 5y+2x=58 Please help

Mathematics
1 answer:
Damm [24]3 years ago
5 0

Answer:

(x,y)=(44,-6)

Step-by-step explanation:

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(picture included) will mark brainliest
Anarel [89]

Answer:

1. A

2. C

3. B

Step-by-step explanation:

1. we can create an equation y = 48x + 96

if we plug in 1 we get 144

2. we can create an equation y = 10x to represent how much battery you will lose every hour

if we plug in 5 to x, we get y = 50

so we get the plot point: (5, 50)

3. process of elimination

5 0
3 years ago
2. A museum has an admission fee of $14 and averages 300 visitors per day. The museum board
dlinn [17]

Answer:

The answer to the questions asked is:

a) The maximum possible income for the museum is $4,840 per day.

b) The increase you must make to obtain the maximum income is $8 per ticket.

c) The income of the museum without increasing the fee is $4200.

Step-by-step explanation:

To solve all the questions asked, we must take into account the provided equation:

  • <u>R = -10x2 + 160x + 4200 </u>

The first question asks for the maximum income, that is, the maximum amount of money that can be obtained by making increases in the rate, despite the loss of people, so you must replace the X in the equation with values ​​until instead of increase decrease:

  • R = -10 (1) 2 + 160 (1) + 4200 = 4350
  • R = -10 (2) 2 + 160 (2) + 4200 = 4480
  • R = -10 (3) 2 + 160 (3) + 4200 = 4590
  • R = -10 (4) 2 + 160 (4) + 4200 = 4680
  • R = -10 (5) 2 + 160 (5) + 4200 = 4750
  • R = -10 (6) 2 + 160 (6) + 4200 = 4800
  • R = -10 (7) 2 + 160 (7) + 4200 = 4830
  • <u>R = -10 (8) 2 + 160 (8) + 4200 = 4840 </u>
  • R = -10 (9) 2 + 160 (9) + 4200 = 4830

As you can see, when the increase is $9, the income falls, so <u>the maximum income is $4,840, while it can be seen that it occurs with an increase of $8, which answers the second question</u>.

For the third question, that is, the income of the museum without increasing the fee, you must remember that the variable X is the increase in the fee, therefore, if you want to obtain the income without an increase, it must be given a value of zero to the variable inside the equation, with which we obtain:

  • <u>R = -10 (0) 2 + 160 (0) + 4200 = 4200</u>
3 0
4 years ago
What is the equation of the line passing through the points (2, -1) and (5, -10) in slope-intercept form?
AnnyKZ [126]

Answer:

y=-3x+5

Step-by-step explanation:

m= (-10-(-1))/(5-2) = -3

-1 = -3x2 + c

c=5

6 0
4 years ago
Yasmin bought several items at the discount store.She paid 8.75 percent sales tax , an amount of $4.59,on the total amount of he
Brilliant_brown [7]

Answer:

$52.5

Step-by-step explanation:

amount paid in sales tax= 4.59

salex tax= 8.75

if x is the total amount of purchase,

8.75% of x = 4.59

x = 52.5

8 0
3 years ago
Choose the correct equation for the graph shown below
Paraphin [41]

Answer:

the second option, y=1/2cos(x- pi/4)

Step-by-step explanation:

6 0
3 years ago
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