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Hunter-Best [27]
4 years ago
15

-2x+5y=-2 x-3y=3 solve the system

Mathematics
1 answer:
aliina [53]4 years ago
7 0

Answer:

y = -4, x = -9

Step-by-step explanation:

System: -2x + 5y = -2, x - 3y = 3

Multiply the second equation: 2x - 6y = 6

Elimination:

   -2x + 5y = -2

<u>+   2x  - 6y = 6</u>

            - y  = 4 --> y = - 4

Plug in: x - 3(-4) = 3

x + 12 = 3

x = -9

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allochka39001 [22]
D because n= -14 and were dividing 56
3 0
3 years ago
Solve each equation for d when c = 0 <br> 10c+ 4d = 40
Yanka [14]
Hello!

The answer would be d = 10. Solve it like this. (v v v)

10 * 0 + 4 * d = 40 ---> 0 + 4 * 10 = 40

0 + 40 = 40

40 = 40

Hope this helps! ☺♥
3 0
3 years ago
Read 2 more answers
Use the information frompart a to write an equation representing the number of colories burned each minute while bowling. Let m
Fofino [41]

Answer:

To find the number of calories burned:

Find the Metabolic Equivalent of Task (MET) value of the task.

Calculate the number of calories burned per minute. (MET x body weight in kg x 3.5) / 200.

Multiply the calories burned per minute by the number of minutes of activity.

Now, as per the question, weight is 125 pounds (lb), we will convert the weight in kilogram (kg) which is 1 lb = 0.453 kg, it means 125 lb = 56.7

Now we have to find the MET,

A metabolic equivalent (MET) value is a measurement of the energy cost of a specific physical activity for a specific period of time.

For example. A MET of 1 would be roughly equivalent to a person's energy expenditure from sitting still in a room temperature and not actively digesting food.

As per the Calorie guide value of MET for bowling is 3.9

Now the overall formula is

Calorie Burn (x) = ((MET * body weight in kg * 3.5) / 200) * (Number of minutes) m

x = ((3.9*56.7*3.5)/200) * m

Finally, x = 3.87 m represents the number of calorie burned (x) while bowling m minutes.

8 0
3 years ago
What is the following number in decimal form?
belka [17]
The correct answer is b
7 0
3 years ago
In Need of help please Help :c
Oksanka [162]

Answer:

  • proportional: A, B, D, G, I
  • non-proportional: C, E, F, H

Step-by-step explanation:

Any relation with a non-zero initial value or y-intercept is non-proportional. Any relation that has a constant ratio between output and input is proportional.

  C has an initial value of 7

  E has a y-intercept of -3

  F has an initial value of 2.00

  H has an initial value of 5

All of these are non-proportional. The remainder are proportional.

3 0
3 years ago
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