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4 years ago

Which property of equality would you use in the first step of solving this equation 2x-6=12

Mathematics

2 answers:

svetoff [14.1K]4 years ago

4 0

Answer:

Step-by-step explanation:

i dont know

horsena [70]4 years ago

3 0

1. Add 6 on both sides, under 6 and under 12

2. 6 cancels out

3. Add 12 and 6 to get 18

4. Bring down 2x equal to 18 and divide by 2

5. 2 cancels out

6. 18 divided by 2 equals 9

7. X=9

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2 Points Which expression is equal to the expression below? (2 • 64

Verdich [7]

Answer:

2(1 x 32)

Is this the answer you asked for?

4 0

3 years ago

Erin has a balance of $1,150.34 in her check register. On her statement, the balance of her account is $844.93. Not reported on

larisa [96]

Answer:

Step-by-step explanation:

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3 years ago

The population of a city grows exponentially at rate of 8% per year.Find the number of years it takes for the population to be d

Ilya [14]

Answer:

It will take 9 years for the population to double

Step-by-step explanation:

Exponential Growth

The natural growth of some magnitudes can be modeled by the equation:

$P=P_o(1+r)^t$

Where P is the actual amount of the magnitude, Po is its initial amount, r is the growth rate and t is the time.

The population of a city grows at a rate of r=8% = 0.08 per year. We are required to find when (t) the population will double, or P=2Po.

Substituting in the equation:

$2P_o=P_o(1+0.08)^t$

Simplifying:

$2=(1.08)^t$

Taking logarithms:

$\log 2=\log (1.08)^t$

Applying the exponent property of logs:

$\log 2=t\log (1.08)$

Solving for t:

$\displaystyle t=\frac{\log 2}{\log (1.08)}$

Calculating:

$t\approx 9$

It will take 9 years for the population to double

8 0

3 years ago

NEED HELP ASAP 20POINTS The energy (and cost) needed to operate an air conditioner is proportional to the volume of a space that

insens350 [35]

Answer:

The daily cost of cooling the large warehouse with the same model of air conditioner is $\$1,953$

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

In this problem

The scale factor is equal to 2.5

The scale factor elevated to the cube is $2.5^{3} =15.625$

To estimate the daily cost of cooling the large warehouse with the same model of air conditioner, multiply $125.00 by the scale factor elevated to the cube

$\$125(15.625)=\$1,953$

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3 years ago

If ab = a, then b = A) 0 B) 1 C) a D) even

Zanzabum

Answer:

Step-by-step explanation:

because a number multiplied with 1 is equal to itself

8 0

3 years ago