The greatest place value is ten thousand. the digit in the ones place is 7. the remaining digits are 2,4,and 6. one of the digits has a value of 40. the value of the digit in the hundredths place is 10 times greater than this. the digit in the thousands place is 2 more than the digit in the hundredths place

So the number you are looking for is between 10000 and 100000 written like this more formally

10000 ≤ x ≤ 100000

Now you move on to 7. How do you write were the 7 is? It's in the one's place. You don't anything else that's new so its

10007

Next you are told that one of the numbers making up the number you want is in the tens place (as in forty).

10007

. . . 40 Add

10047

Now we move on to the two remaining places. "This" is one of the most horrible words in the English Language. I suppose they mean that the hundred's place is 40*10 = 400.

10047

. .400 Add

10447 is what you get now.

The digit in the thousands place is 2 more than what is in the hundred's place. 4 + 2 = 6

So what we know now is that we have 16447

Finally we are told that there is a 2 someplace and we haven't used it. So it must be where the 1 is.

26447 That's your final answer.

a.   we have two

lines:   y = 4-x   and  

y = 8-x^-1

given two simultaneous equations that are both to be

true, then the solution is the points where the lines cross. the intersection is

where the two equations are equal. therefore the solution that works for both

equations is when

4-x = 8-x^-1

this is where the two lines will cross and that is the

common point that satisfies both equations.

b.   4-x = 8-x^-1

  x           4-x       8-x^-1

-3           7        

8.33

-2           6         8.5

-1           5         9

  0           4        

-

  1           3        

7

  2           2        

7.5

  3           1         7.67

the table shows that none of the x values from -3 to 3 is

the solution because in no case does

4-x = 8-x^-1

to find the solution we need to rearrange the equation to

find for x:

4-x = 8-x^-1

multiply both sides with x:

4x-x^2 = 8x-1

x^2+4x-1=0

x= -4.236, 0.236

therefore there are two points that satisfies the

equation.

find y:  

x=-4.236

y = 4-x   = 4 – (-4.236)

= 8.236

y = 8-x^-1 =   .236)^-1

= 8.236

x=0.236

  y = 4-x   = 4 – (0.236) = 3.764

y = 8-x^-1 =   8-(0.236)^-1

= 3.764

thus the two lines cross at 2 points:

(-4.236, 8.236) & (0.236, 3.764)

c.   to solve

graphically the equation 4-x = 8-x^-1

we would graph both lines: y = 4-x   and   y

= 8-x^-1

the point on the graph where the lines cross is the

solution to the system of equations.

just graph the points on part b on a cartesian coordinate

system and extend the two lines.   the

solution is, as stated, the point where the two lines cross on the graph.

step-by-step explanation:

mark brainliest!

- (2, -7)

- lines r and s and lines t and u must be parallel