Find the equation of the line that is parallel to the x-axis and passes through the point with coordinates (-4,11)

A phone company charges 12 cents per minute of call. If Gerardo made a call that took 75 minutes using this plan, how much did h

sukhopar [10]

Answer:

900 cents, 9 dollars

Step-by-step explanation:

4 0

2 years ago

Huong had $23 to spend on six notebooks. After buying them she had $11. How much did each notebook cost?

Nataly [62]

23-11=12
She spent $12 on notebooks, and she bought six notebooks.
12/6=2

Each notebook costed $2.

8 0

3 years ago

Read 2 more answers

Samantha divides $16,000 into three investments: a savings account 3 points paying 7% annual interest, a bond paying 9%, and a m

kipiarov [429]

Answer:

2000 was the amount of the investment in the savings account

6000 was the amount of the investment in the payment of bonds

8000 was the amount of the investment in the money market

Step-by-step explanation:

In this case, a system of equations must be generated with the information given in the statement.

Let x be the amount of the investment in the savings account

Let y be the amount of the investment in the payment of bonds

Let z be the amount of investment in the money market

Now, the first equation would be that of total investment:

x + y + z = 16000

The second equation is that of interest:

0.07 * x + 0.09 * y + 0.12 * z = 1640

Last, her equation has invested three times more in the bond payment than in the savings account:

3 * x = y

So we have 3 equation with 3 unknowns. Therefore there is a solution.

x + y + z = 16000

0.07 * x + 0.09 * y + 0.12 * z = 1640

3 * x = y

In order not to make the answer too extensive, we will solve the system of equations with the help of symbolab, here is the step-by-step of everything they do in a very detailed and precise way.

https://es.symbolab.com/solver/step-by-step/x%20%2B%20y%20%2B%20z%20%3D%2016000%3B%200.07%20%5Ccdot%20x%20%2B%200.09%20%5Ccdot%20y%20%2B%200.12%20%5Ccdot%20z%20%3D%201640%3B%203%20%5Ccdot%20x%20%3D%20y

From this, the results are as follows:

x = 2000

y = 6000

z = 8000

Thus

2000 was the amount of the investment in the savings account

6000 was the amount of the investment in the payment of bonds

8000 was the amount of the investment in the money market

7 0

2 years ago

Cattle ranching

Svetach [21]

Answer:

b

Step-by-step explanation:

texas industries probably most affected most by agriculture

3 0

2 years ago

Which subpart(s) of the 45 cfr 46 is/are sometimes referred to as the common rule?

Olenka [21]

Subpart a is the subpart of the 45 CFR 46 which describes the required protections for all human subjects.

The application of the federal policy regarding Human Subjects Protection to 17 Federal agencies and offices is called the Common Rule. Federal agencies that did not sign the agreement (e.g., Department of Labor, etc.) are exempted from the policy. The Common Rule’s main elements include the following:

1. research institutions’ requirements for assuring compliance

2. obtaining and documenting informed consent requirements for researchers'

3. Institutional Review Board (IRB) membership, operations, function, record keeping, and review of research requirements

The specific vulnerable research subjects’ additional protections are included in the Common Rule.

Additional protections for pregnant women, in vitro fertilization, and fetuses is provided in subpart B.

Additional protections for prisoners is contained in subpart C.

The same for children is contained in subpart D.

8 0

3 years ago