Answer:
Its A x - 55 = 39
Step-by-step explanation:
x - 55 = 39
x = 39 + 55
x = 94
This is correct as they sold 39 and kept 55
This means they had 94 to begin with.
I hope this helps ^_^
Number of cards they have 160 in the end.
Step-by-step explanation:
Given,
The ratio of cards David and Sam has = 4:5
Again,
David collected an additional 50% of cards.
Sam doubled his number of cards.
Sam now has 40 more cards than David
To find total number of cards they have.
Let,
David has 4x cards
Sam has 5x cards
Again,
Number of cards David has = 4x ×
= 6x
Number of cards Sam has = 5x×2 = 10x
According to the problem,
10x = 6x+40
or, 10x-6x = 40
or, 4x = 40
or, x = 10
Altogether they have = 6x+10x = 16x
= 16×10 = 160
Hence,
Number of cards they have 160 in the end.
Answer:
the answer is C
Step-by-step explanation:
Symbolab baby
There are two coefficients and two variables.
The coefficients are 9 and 11.
The variables are a and p.
Hope that helped!
There is an association because the value 0.15 is not similar to the value 0.55
For the nutritionist to determine whether there is an association between where food is prepared and the number of calories the food contains, there must be an association between two categorical variables.
The conditions that satisfy whether there exists an association between conditional relative frequencies are:
1. When there is a bigger difference in the conditional relative frequencies, the stronger the association between the variables.
2. When the conditional relative frequencies are nearly equal for all categories, there may be no association between the variables.
For the given conditional relative frequency, we can see that there exists a significant difference between the columns of the table in the picture because 0.15 is significantly different from 0.55 and 0.85 is significantly different from 0.45
We can conclude that there is an association because the value 0.15 is not similar to the value 0.55
