Answer:
Answer:
true
Step-by-step explanation:
4/7 = 8/9
= 4*9/7*8
= 36/56
= 2*2*3*3/2*2*2*7
= 9/14
proved
Step-by-step explanation:
Answer:
y = -28 ÷ x
Step-by-step explanation:
The standard format of a inversely proportional equation goes by the format of y = k ÷ x. The question asks us to write an equation if y = 7 when x = -4 and y varies inversely with x.
So we substitute the values y = 7 and x = -4 in the equation y = k ÷ x
K = constant, we have to work this out
7 = k ÷ -4
7 × - 4 = k
k = - 4 × 7
k = -28
k = -28 So then we put this back into the original y = k ÷ x to find our final equation which is y = -28 ÷ x
You would do 80 * 6/10, which equals 48. Therefore there would be 48 sixth graders at the morning assembly. Hope this helps. Please rate, leave a thanks, and mark a brainliest answer(Not necessarily mine). Thanks, it really helps! :D
Hello,
Let's x² the square number
and 3*y the multiple of 3.
![x^2+3y=90\\\\\boxed{y=-\dfrac{1}{3} x^2+30}\\\\](https://tex.z-dn.net/?f=x%5E2%2B3y%3D90%5C%5C%5C%5C%5Cboxed%7By%3D-%5Cdfrac%7B1%7D%7B3%7D%20x%5E2%2B30%7D%5C%5C%5C%5C)
2 solutions : for (x,y) as integers : (-6,18) and (6,18)
but one solution for (x²,3y) as integers :<u> (36,54) </u>
There both types of numbers but a whole number is a number with no exponents or decimals, but decimals are like a broken un half whole number