Answer:
(V + W) * 5 = 175 boat traveling downstream
(V - W) * 7 = 189 boat traveling upstream
V + W = 35
V - W = 27
2 V = 62
V = 31 = speed of boat
2 W = 8
W = 4 speed of water
Upstream 7 * (31 - 4) = 189
Downstream 5 * (31 + 4) = 175
Answer:
No A divided by 0 is undefined.
Step-by-step explanation:
Lets say 'a' divided by 'b' is 'n' times 'b'.
For example: 15 divided by 3 is 5 times 3
Now, for A:
A divided by 0 should be n times 0
but 0 multiplied by any number is 0
Therefore, A divided by 0 is undefined
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4. you got this one correctly
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am going to number 10
10.

9. 16 oz bottles at 1.25 dollars is cheaper than 20 bottles at 1.55 dollars so that 16 bottles is the best to buy
Answer:
80 cubes
Step-by-step explanation:
volume of one small cube = 1 /2 × 1 / 2 × 1 / 2
= 1 / 8cm^3
let x be the number of cubes needed
1 / 8 × x = 10
x = 10 × 8
x = 80 cubes
Answer:
2k
Step-by-step explanation: