linaer equations

Question

The number of miles remaining for a jet traveling from San Francisco to New York can be approximated with the linear equation Miles remaining=2650 - 475t where t is the number of hours since leaving San Francisco. In how many hours will the jet be 1,000 miles from New York?

Answer 1

1000=2650-475t

-1650=-475t

t=66/19 hours

Answer 2

2(2x2+7)-3(12-3x3)=

Answer 3

-12=2+5v+(2v)

Answer 4

In the simplex method, how is a pivot column selscted?. A pivot row? A pivot element? Give examples of each.

Answer 5

(2x^3+x-3)/(x-3)    

Simplifying

Answer 6

Remaining miles = 2,650-475t

miles from New york = 100

Number of hours of = t

 

Solution:

1000=2,650-475t

1000-2,650 = -475t

-1,650=-475t

-1,650/-475 = -475t/-475

3.47 = t

t = 3.47

Thus, the jet will take 3.47 hours to travel 1,000 mile from New York

Answer 7

i don't know

Answer 8

 

A politician that tries to win an election.

Three types of areas of the district:

urban (100,000 voters),

suburban (200,000 voters), and

rural(50,000 voters).

Primary issues:

Building more roads

Gun control

Farm subsidies

Gasoline tax

Advertisement fee

For every $1,000…

n Figure out the minimum amount of money that you need to spend in order to win

n50,000 urban votes

n100,000 suburban votes

n25,000 rural votesA politician that tries to win an election.

Three types of areas of the district:

urban (100,000 voters),

suburban (200,000 voters), and

rural(50,000 voters).

Primary issues:

Building more roads

Gun control

Farm subsidies

Gasoline tax

Advertisement fee

For every $1,000…

n Figure out the minimum amount of money that you need to spend in order to win

n50,000 urban votes

n100,000 suburban votes

n25,000 rural votes

Answer 9

simplex method
Maximise Z= 3 X1+ 4X2+ 1X3+ 5X4
Subjected to 8X1+ 3X2+ 2X3 + 2X4 ≤ 10
2X1+ 5X2+ 1X3+ 4X4 ≤ 5
1X1+ 2X2+ 5X3+ 1X4 ≤ 6
X1, X2, X3, X 4 ≥ 0

Answer 10

-3x+7y=-16

-9x+5y=16

Answer 11

for m = 2650 -450t, substitute m, the miles remaining, with 1000, the miles remaining to get to New York.

1000 = 2650-450t

-1650 = -450t

t = 3.67 hours.

Hope this helped!

Answer 12

Solve the following Linear Programming Problem using Simple method.
Maximize Z= 3x1 + 2X2
Subject to the constraints:
X1+ X2 ≤ 4
X1 - X2 ≤ 2
X1, X2 ≥ 0

Answer 13

1000=2650-475t

-1650=-475t

t=1650/475

t=3.47hours

this means that, the jet will in 3.47hours be 1000 from New York

Answer 14

(20,80000) and (30,,62500)  demand function q=fp

Answer 15

Please explan CJ-ZJ

Answer 16

d=2650-475t=1000

475t=2650-1000=1650

t=1650/475

t=3.473684211 ours

or bout 3 ours+28 minuts

Answer 17

Find two solution of the linear equation 2x-y=4

Answer 18

Linear equations has a two variables! :)

Answer 19

y=2x-3