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topjm [15]
3 years ago
8

Abby bought an 8 pound bag of doog food for $7.40. How much does the bag cost per pound? (round to the nearest hundreth)

Mathematics
2 answers:
Sergio039 [100]3 years ago
7 0

Answer:

a

Step-by-step explanation:

kramer3 years ago
5 0

Answer:

0.92 per pound

Step-by-step explanation:

if you divide 7.40 from 8 it is 0.925. and if you multiply 0.925 by 8 it will give you 7.4. hope this helps.

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In each of the following ,make y the subject and hence find the value of y when a=2, b=3 ,and c=4.
zvonat [6]

Part i


\dfrac{2a-7}{6y} = \dfrac{3b-5}{2c}


y = \dfrac{ 2c(2a-7)}{6(3b-5)} = \dfrac{c(2a-7)}{9b-15}


Substituting,

y = \dfrac{4(2(2)-7)}{9(3)-15} = \dfrac{ -12}{12} = -1


Answer: -1


Part ii


I'm not sure that one's typed in correctly but I'll solve it as written.


3-34y + 2a = \dfrac{3b-5}{2c + 1}


34y  = 3+2a-\dfrac{3b-5}{2c + 1}


y = \frac 1 {34}\left(3+2a-\dfrac{3b-5}{2c + 1} \right)


We're not asked to simplify it so I wont. Substituting,


y = \frac 1 {34}\left(3+2(2)-\dfrac{3(3)-5}{2(4) + 1} \right) = \frac 1 {34}(7-4/9) = \dfrac{59}{306}


Answer: 59/306



3 0
3 years ago
James is 8 years old. Last year, his father was 4 times as old as he was. In how many years' time will their combined age be 51?
Snowcat [4.5K]

Last year He was 7 years old.

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Last year his dad was 28, so this year he is 29.

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8 + 7 = 15

29 + 7 = 36

15 + 36 = 51

It will take 7 years.

7 0
3 years ago
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Answer:

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Step-by-step explanation:

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