What does 7x - 9y equal when x = 4 and y = 130?

Answers

Answer 1

Answer: 7(4)-9(130)
28-1170
answer: -942

Related Questions

The volume of a cubical box is 10.648 cm cube. find the side of the cube.
Help me. I will mark brainliest
99.2 +99.8 ????? bg UwU
If there are 12 people sitting at a round table , how many different pairs of people can have conversations during dinner, assuming the can all talk to each other? What geometric figure can you use t model this situation?
Which pair of angles are complementary but not adjacent?

If x represents the number of hours machine X runs and y represents the number of hours machine Y runs, what is the objective function: "c = xy"?

Answers

Answer: Here's my answer

Step-by-step explanation:

The objective function given, "c = xy", represents the cost (c) associated with the operation of machine X and machine Y, where x represents the number of hours machine X runs and y represents the number of hours machine Y runs.

To understand the objective function, let's break it down step by step:

1. "c" represents the cost associated with the operation of the machines. This could include expenses such as maintenance, energy consumption, or labor costs.

2. "x" represents the number of hours machine X runs. This indicates the duration for which machine X is in operation.

3. "y" represents the number of hours machine Y runs. This indicates the duration for which machine Y is in operation.

4. The objective function "c = xy" states that the cost (c) is calculated by multiplying the number of hours machine X runs (x) by the number of hours machine Y runs (y). This means that the total cost is proportional to the product of the hours of operation for both machines.

For example, if machine X runs for 5 hours (x = 5) and machine Y runs for 3 hours (y = 3), the cost (c) would be calculated as follows:

c = xy

c = 5 * 3

c = 15

In this case, the cost (c) would be 15, representing the total cost associated with the operation of both machines for the given hours.

Therefore, the objective function "c = xy" calculates the cost based on the product of the hours of operation for machine X and machine Y.

When Lisa and Tom has their first child, they put $7,500 into a savings account that earns 6% compound interest. If Lisa and Tom did not add or remove anything from the savings account, how much interest will they have earned after 4 years?

Answers

Answer:

Step-by-step explanation:

We would apply the formula for determining compound interest which is expressed as

A = P(1 + r/n)^nt

Where

A = total amount in the account at the end of t years

r represents the interest rate.

n represents the periodic interval at which it was compounded.

P represents the principal or initial amount deposited

From the information given,

P = $7500

r = 6% = 6/100 = 0.06

Assuming the interest was compounded annually, then

n = 1 because it was compounded once in a year.

t = 4 years

Therefore,

A = 7500(1 + 0.06/1)^1 × 4

A = 7500(1.06)^4

A = $9468.6

The interest that they would have earned after 4 years is

9468.6 - 7500 = $1968.6

Simplify 6x - 4 - 6x

Answers

If you combine like terms, positive 6 x and negative 6 x cancel each other out and you are left with -4.

6x - 4 - 6x = = -4

If an object is dropped from a height of 85 feet, the function h(t)=-16t^2+85 gives the height of the object after t seconds. Approximately, when will the object hit the ground?a. 85.00 seconds
b. 69.00 seconds
c. 0.33 seconds

Answers

c because all you need to do is compare the 2 variables and then add the variables and the multiply it and then divide it. Then your golden.

2-90 Frieda Friendly works for a local car dealership. She noticed that 343434
of the cars are sedans and that half of them are white. What fraction of the dealership’s cars are white sedans?

A. Use a unit rectangle to represent this situation. Label the parts carefully. (Complete in your notebook.)

B. Write an equation or a sentence that describes the situation, and answer the question. (Complete in your notebook.)

Write your answer from part (b) as a decimal and as a percent.

PLEASE ISTG IM CRYING OVER THIS QUESTION- I'LL MARK BRAINLIEST!!!!!!

Answers

Do B hope this helps

A doctor estimates that a particular patient is losing bone density at a rate of 3% annually. The patient currently has a bone density of 1,500 kg/mg3. The doctor writers an exponential function to represent the situation. Which values should the doctor use of a and b in a function written in the form f(x)= abx, where f(x) represents the bone density after x years?

Answers

If a patient is losing bone density at the rate of 3 % annually then it will rest:
100% - 3% = 97 %, or 0.97 of a bone density.
The doctor should use a function: $f(x)= 1,500 * 0.97^(x)$
a = 1,500, b = 0.97

Other Questions

Find the standard form of the equation of the parabola with a focus at (7, 0) and a directrix at x = -7.A. y = one divided by twenty eightx2 B. x = one divided by twenty eighty2 C. -28y = x2 D. y2 = 14x

What is 27a•0=0, please answer it ASAP please A. Associative Property of Multiplication B. Commutative Property of Multiplication C. Zero Property of Multiplication D. Identity Property of Multiplication

I need confirmation to this. I did it already. I just want to know if I’m right. Please work it out for me to see.

a paddle boat can move at a speed of 6km/h in still water. the boat is paddeled 16km downstream in a river in the same time it takes to go 8km upstream what is the speed of the river?