Answer:
S = 350+70W
S =1470
Step-by-step explanation:
He starts with 350, that is the initial amount
Each week he adds 70, that means it gets multiplied by the number of weeks,W
The total amount S = the initial amount plus the weekly addition times the number of weeks
S = 350+70W
Let W =16
S = 350+70*16
S = 350+1120
S =1470
Answer: 7 pigeons sitting on the branches, 5 pigeons under the tree
=12 in total
Step-by-step explanation:
Upper branch has x pigeons, lower has y.
Top branch said: "If one of you flies up to us our number will be double yours":
Well, if one of the bottom branch flies up, the top branch will have x+1 birds and the bottom will have (y−1). The top will have double the bottom, so:
x+1=2(y−1)
Top branch said: "If one of us flies down to you, our numbers will be equal":
Now, the top branch will have x−1 and the bottom y+1. The numbers should be equal:
x−1=y+1
Answer:
Following are the solution to the given choices:
Step-by-step explanation:
In point a:
Calculating the variance of the test grade:
In point b:
The relationship between the top 20 students is also slight, so the top 20 students are more university-like than all secondary students.
X ^ 3y ^ 3-5x ^ 3 + 2x ^ 2y ^ 3 + 2
Answer:
6.7
Step-by-step explanation:
