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>
Answer:
three <em>multipl</em><em>i</em><em>e</em><em>d</em><em> </em>by six <em>m</em><em>i</em><em>n</em><em>u</em><em>s</em><em> </em>one in <em>parentheses</em><em> </em>
Step-by-step explanation:
For the last part aka (6-1) just say that 6-1 is in parenthesis
Hope this helpss!! :DD♡
Answer: 1/50 or C
Step-by-step explanation:
I did the test :D
The answer is 22 because in order to divide fractions (in this case we would have 11 as a fraction), you need to multiply one fraction by the reciprocal of the other fraction (the flipped form of a fraction).
To find this, we would do * .
This would come to be , and when simplified by dividing the numerator and denominator by 9, you get 22.
Answer:60
Step-by-step explanation:
3 ways to pick the meat,
4 ways to pick the eggs,
5 ways to pick the cereal.
For each of the 3 meats you can pick any of the 4 egg dishes, so 12 ways to pick a meat and an egg dish.
For each of those 12 you can pick any of the 5 cereals, so 60 ways to pick the meal.