Year 1: 7lbs x 3years= 21lbs
Year 2: 21lbs x 3years = 63lbs
Answer:
Total charge= -25
Step-by-step explanation:
Given :
Charges of some ions
Aluminium +3
Phosphate -3
Chloride -1
Silver +1
To find total charge on 8 phosphate,7 chloride and 2 Aluminium atoms
Aluminium +3 × 2 =+6
Phosphate -3 × 8 = -24
Chloride -1 × 7 = -7
total charge=
+6-24-7 =+6 -31
= -25
2. 3 whole number box
0.6 for the dividend
4.4 on the top of the divided box
1/3 for the first /
0.6/2.64 for the second /
4.4 for the box above the estimate one
Yes for the estimate question
A. 32.58
B. 23.4
C. 0.9
I really hope this will help your sister hope she feels better *smiles*
Sorry if I got these wrong
It is real sly hard but I am sorry I can I think it is boys
