You estimate that there are 66 cars in a parking lot. The actual number of cars is 75.

Answer:

156

Step-by-step explanation:

Using PEMDAS: We do the paranthese first:

7 * 22 + (8-2) / 3.

7 * 22 + 6 / 3.

Multiply / Divide:

154 + 6 / 3

154 + 2

156

You multiply 7 and 22 than add (8-2) than divide 3 than you will get 156

Answer:

p(x) = 0.1x + 1

Step-by-step explanation:

Pressure at sea level = 1 atmosphere

Depth dove by Sydney = 23 meters

Pressure at a depth of 23 meters = 3.3 atmospheres

So,

Pressure at a depth of 23 meters = Pressure at sea level + k * Depth dove by Sydney

where k is  the diving rate constant

=> 3.3 = 1 + k(23)

=> 3.3 = 23k + 1

Subtracting 1 from both the sides, we get

3.3 - 1 = 23k + 1 -1

Cancelling out the +1 and -1 from the right side, we get

2.3 = 23k

=> 23k = 2.3

Dividing both sides by 23, we get

Cancelling out the 23's from the top and bottom of the left side, we have

k = 0.1

Plugging in the value of k in the equation, we get

Pressure at a particular depth = Pressure at sea level + k * Depth dove by Sydney

p(x) = 1 + k(x)     [where p(x) is the pressure at a depth x]

=> p(x) = 1 + 0.1(x)

=> p(x) = 0.1x + 1

Answer:

0.1x + 1

Step-by-step explanation:

Answer:

220 minutes

Step-by-step explanation:

Find how many hours there are between the two times which is 3 hours then multiply 3 by 60 because there are 60 minutes in an hour

Since the time is 11:40 we also know 40 minutes have passed so add the two minutes

40+180=220

Answer:

From what I can comprehend I believe the answer is 3.2x + -4

Step-by-step explanation:

0.4(2x-9) = 0.8x - 9

0.8x - 9 - 0.6(4x+5)=

0.8x - 9 + 2.4x+5

0.8+2.4 = 3.2x

-9 + 5 = -4

3.2x + -4

The solutions of the equation are

Explanation:

Given that the equation is

We need to determine the solutions of the equation.

Let us substitute and

Thus, the equation becomes,

Factoring the equation, we get;

Substituting back and solve for x.

First, we shall substitute

Thus, we get;

Similarly, substituting , we get;

Thus, the solutions of the equation are