You can solve <span>9/x-4/y=8 for x or for y but NOT at the same time.

Solving for x: </span><span>9/x-4/y=8 Mult all 3 terms by xy to eliminate the fractions.

9(xy)/x - 4xy/y = 8xy => 9y - 4x = 8xy, or 9y = 4x + 8xy = 4x(1+2y)

then 9y = x [ 4(1+2y) ]
9y
therefore x = ------------
4(1+2y)

Solve for y using a similar approach.

</span>

7 0

3 years ago

A number cube is labeled 1 to 6. Richard Rolle the number Cube 500 times and record the results. About how many times, Richard e

Nataly [62]

Answer:

250 times

Step-by-step explanation: This is because a number die is random and if it were based on even and odd, the chances would be 50/50

4 0

3 years ago

Pythagorean Theorem!!! someone pls help tyyy

viva [34]

Answer:

43.7

Step-by-step explanation:

7 $7^{2} +7^{2} =\sqrt{98} \\\sqrt{98}=9.899494937\\ That is the measurement for the dotted line. If we round it like they did in the example it would be 9.90. That is the measurement for all the sides of the square. \\We need the measurement for only 3 sides of the square and the two outer sides of the triangle (7ft)\\7ft + 7ft + 9.90 + 9.90 + 9.90 = 43.7\\\\Joshua added the 7's and they square rooted them for the Hypotenuse.\\Then the perimeter of all sides did not need any square roots.$

6 0

3 years ago

Please answer urgent

vagabundo [1.1K]

Answer:

snaosfajaoabadaaoafaooaaj

8 0

3 years ago