Answer:

Step-by-step explanation:
Let
h-----> the high of the balloon
we know that
In the right triangle of the figure



Divide 74 into 4 and 6
74/4 = 18,5
74/6=12,33
so if you buy in bags of 4 you need 19 bags, which costs 5 x 19 = $95
if you buy in bags of 6 you need 13 bags, which costs 7 x 13 = $91
Buying in bags of 6 costs less.
Answer:
10 times greater is the value of 5 in 3,590 than the value of 5 in 359.
Step-by-step explanation:
To find : How many times greater is the value of 5 in 3,590 than the value of 5 in 359 ?
Solution :
The place value stem is
Thousand Hundred Tens Ones
1000 100 10 1
The value of 5 in 3,590 is at hundred place
So, 
The value of 5 in 359 is at tens place
So, 
Number of time greater is the value of 5 in 3,590 than the value of 5 in 359 is given by,


Therefore, 10 times greater is the value of 5 in 3,590 than the value of 5 in 359.
Answer:
Step-by-step explanation:
Answer:
all books to new books- 14:5
used books to new books- 5:9
Step-by-step explanation: