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Dimas [21]
3 years ago
8

Which ordered pair represents the solution to the system of equations? {−5x+7y=−196x−2y=10

Mathematics
1 answer:
Alenkinab [10]3 years ago
4 0

Answer:

Step-by-step explanation:

-5x + 7y = -19

6x - 2y = 10

-10x + 14y = -38

42x - 14y = 70

32x = 32

x = 1

-5 + 7y = -19

7y = -14

y = -2

(1, -2)

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This equation shows how the time required to ring up a customer is related to the number of items being purchased. t = 4p + 20 T
konstantin123 [22]

Answer:

6 items are being purchased

Step-by-step explanation:

Given that  variable p represents the number of items being purchased, and the variable t represents the time required to ring up the customer, If it takes 44 seconds to ring up a customer then the number of items being purchased may be computed by substituting the value of t into the given equation

t = 4p + 20.

Using t = 44

44 = 4p + 20

collect like terms or subtract 20 from both sides

44 - 20 = 4p

24 = 4p

Divide both sides by 4

24/4 = p

p = 6

4 0
3 years ago
What visualization should be used to show how many observations of a certain value have been made?
Levart [38]
<span>A bar graph or pie chart would be good visualization method to demonstrate how many observations of a certain value have been made. The bar graph and pie chart would also provide slightly different perspectives on the proportion of observed values recorded.</span>
6 0
3 years ago
The equation d=11cos(8pi/5 t) models the horizontal distance, d, in inches of the pendulum of a grandfather clock from the cente
Bond [772]

Answer:

1.25 seconds

Step-by-step explanation:

Cosine is a maximum at cos(0) = 1, and a minimum at cos(π) = -1.

At the maximum:

8π/5 t = 0

t = 0

At the minimum:

8π/5 t = π

t = 5/8

t = 0.625

The time from maximum to minimum is 0.625 seconds.  Therefore, the time from minimum back to maximum is also 0.625 seconds.  So the total time is:

0.625 + 0.625 = 1.25

7 0
3 years ago
Read 2 more answers
I need help on my math!!!!!
Masja [62]

Answer:

The answer to your problem is 2.

Step-by-step explanation:

5 0
3 years ago
Sally was able to drive
aliina [53]
Remark
Average in this case does not mean you take (s1 + s2)/2. What average speed  means is Total Distance / Total Time.

Formula
Average speed(s) = Total Distance / Total Time

Givens
Total Distance = 252 + 30 = 282 miles
Total Time = 5 hours.

Substitute and Solve
Average speed = 282 / 5 
Average speed = 56.4 miles / hour <<<<< Answer.

The other facts are not used. 
6 0
3 years ago
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