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Naily [24]
2 years ago
5

Solve the system of equations using substitution. y=x+2,5x-4y=-3

Mathematics
1 answer:
NARA [144]2 years ago
8 0

Answer:

x=5 and y=7

Step-by-step explanation:

Just substitute in y=x+2 into the equation 5x-4y=-3 to get 5x-4(x+2)=-3 which simplifies to x=5. Substitute x into y=x+2 to find y=7

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Albert spent more money than Rosa.
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This right rectangular prism is filled with 1/3-foot unit cubes.
MAXImum [283]

Answer:

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Step-by-step explanation:

12 would be your anwer

5 0
3 years ago
K here’s another one please help
Luden [163]

Answer:

Both the relations are functions, the correct answer is a.

Step-by-step explanation:

In order to solve this problem we will first find the inverse relation as shown below:

y = 3x^2 + 5\\x = 3y^2 + 5\\3y^2 = x - 5\\y^2 = \frac{x - 5}{3}\\y = \sqrt{\frac{x - 5}{3}} = \frac{\sqrt{x - 5}}{\sqrt{3}}\\y = \frac{\sqrt{x - 5}\sqrt{3}}{\sqrt{3}\sqrt{3}} = \frac{\sqrt{3x - 15}}{3}

Functions are relations between two groups of numbers, for which the input must generate only one output. Using this definition we can classify both the relation and its inverse as a function, therefore the correct answer is a.

7 0
3 years ago
An architect is designing a building each floor will be 12 ft tall. Write an expression for the number of floors the building ca
Svet_ta [14]

Answer:

\frac{h}{12}

Where "h" is the height of the building.

Step-by-step explanation:

For this exercise it is important to read and analize carefully the information provided.

According to the data given in the exercise, the height of each floor the arquitect is designing is 12 feet.

You want to know the number of floors of 12 feet tall that building can have for a given building height.

Then, you can let "h" represents the height of the building. This will be the variable in the expression.

In order to find the number of those floors that the building can have for "h", you need divide this height by the height of each floor.

Therefore, you can determine that the expression asked in the exercise is the following:

\frac{h}{12}

Where "h" is the height of the building.

8 0
3 years ago
What is the best example of elasticity demand in the context university of rwanda
WINSTONCH [101]

Answer:

Step-by-step explanation:

<u>Elasticity Demand</u>

  • The flexibility of interest is a significant minor departure from the idea of interest. Request can be delegated as versatile, inelastic, or unitary.
  • Flexible interest is one in which the adjustment of the amount requested because of an adjustment of cost is huge. An inelastic interest is one in which the adjustment of the amount requested because of an adjustment of cost is little.
  • The equation for processing versatility of interest is:

(Q1 - Q2)/(Q1 + Q2)

(P1 - P2)/(P1 + P2)

  • In the event that the recipe makes an outright worth more prominent than 1, the interest is flexible. At the end of the day, the amount changes quicker than the cost. On the off chance that the worth is under 1, the request is inelastic. All in all, the amount changes more slowly than the cost. In the event that the number is equivalent to 1, the flexibility of interest is unitary. All in all, the amount changes at a similar rate as the cost.
  • An illustration of items with a flexible interest is purchaser durables. These are things that are bought inconsistently, similar to a clothes washer or an auto, and can be deferred assuming the cost rises. For instance, vehicle refunds have been extremely fruitful in expanding car deals by diminishing costs.

#SPJ10

7 0
1 year ago
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