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y=1 and x=-3

Solve the following system:
{2 x+3 y = 9 |     (equation 1)
x+5 y = 8 |     (equation 2)
Subtract 1/2 × (equation 1) from equation 2:
{2 x+3 y = 9 |     (equation 1)
0 x+(7 y)/2 = 7/2 |     (equation 2)
Multiply equation 2 by 2/7:
{2 x+3 y = 9 |     (equation 1)
0 x+y = 1 |     (equation 2)
Subtract 3 × (equation 2) from equation 1:
{2 x+0 y = 6 |     (equation 1)
0 x+y = 1 |     (equation 2)
Divide equation 1 by 2:
{x+0 y = 3 |     (equation 1)
0 x+y = 1 |     (equation 2)
Collect results:
Answer: | x = 3           and              y=1
 

Increase 92 by 8  = 100

Decrease 46 by 8 = 38

So....x + y  =  100 + 38   = 138

If you are saying divide this into 38, the answer will be a decimal.....this will always be true when a larger positive number is divided into a smaller positive one .......

750,000

120

9^5  =    59,049  codes possible

80 + 80(.04)(5/12)  = $81.33

The distance traveled by the football is the hypotenuse of a right triangle whose other legs are 25 yards and 35 yds......so  the distance it traveled was =

√ [ 25^2 +  35^2 ]  = about 43 yds

To increase times by 1.02

To decrease divide by 1.02

$41616/1.02 =$40800

The anwser is 2.

Multiply 1 by itself 10 times, which is one.

We're looking for where the cosine = 0

This happens at 90° + n180°     where n is an integer

8x = 3x + 15    subtract 3x from both sides

5x  = 15         divide both sides by 5

x = 3

-(3^2- 4*1*4)  =

- [ 9   -  (4 * 1 * 4 ) ]  =

- [ 9  - (16) ]=

- [ -7]  =

7

GenericUsernameHere, a 7% grade means that for every 100 feet of horizontal distance, the road rises 7 feet.....in other words, we have a right triangle with one leg = 7 and the other = 100 and we're looking for the angle opposite the shorter leg ...so.....using the tangent inverse, we have

tan^-1 (7 / 100)   = about  4°  with the horizontal

Does that help ???

4900.35

I think that you want  n(A U B)  in (5)

If so, we have

n(A U B)  =  n(A) + n(B)  -  n(A ∩ B)

n(A U B)  =   7    +   12    -       5        =   14

REMEMBER BIDMAS

1x1 = 1

1/1=1

now do 1+1 - 1=1

REMEMBER BIDMAS

1x1 = 1

1/1=1

now do 1+1 - 1=1

Here's (4)

Here's (3)  ....I'm assuming that the "16"  in set "F" is supposed to be "15"

29 * 0.12 = 3.48

29 * 0.12 = 3.48

The inverse for 1/3 is for example 3/1 you simply switch the numers :)