Answer:
Step-by-step explanation:
Gabriela has solved incorrectly. 5 should distributed to 9x & (-8) and 4 should be distributed between x & 2
5(9x - 8) = 4*(x + 2)
5*9x - 5*8 = 4*x + 4*2
45x - 40 = 4x + 8
Subtract 4x from both sides
45x - 4x - 40 = 8
41x - 40 = 8
Add 40 to both sides
41x = 8 + 40
41x = 48
x = 48/41
Answer:
25 pounds
Step-by-step explanation:
Let us assume that initially, 1 pound of whole chicken costs x.
So, initially 20 pounds of whole chicken costs 20x.
Now, the price is reduced by 20%.
That means that 1 pound of whole chicken now costs ![x[1-\frac{20}{100} ]=0.8x](https://tex.z-dn.net/?f=x%5B1-%5Cfrac%7B20%7D%7B100%7D%20%5D%3D0.8x)
Therefore, with a 0.8x amount of money, we can now purchase 1 pound of the whole chicken.
Hence, with a 20x amount of money, we can now purchase 
pounds of the whole chicken.
Answer: Positive correlation is a relationship between two variables in which both variables move in tandem—that is, in the same direction. A positive correlation exists when one variable decreases as the other variable decreases, or one variable increases while the other increases
Step-by-step explanation:
Answer:
x = ±sqrt(19)
Step-by-step explanation:
x^2-8=11
Add 8 to each side
x^2-8+8=11+8
x^2 = 19
Take the square root of each side
sqrt (x^2) = ±sqrt(19)
x = ±sqrt(19)
Answer:
gran can make 42 pints of jam in 7 days
Step-by-step explanation:
first divide 18 by 3 and you'll get 6 pints in 1 day then multiply 6 and 7 and you get 42
