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mezya [45]
3 years ago
7

A grocery store sells bags of oranges in two different sizes the 3 pound bag $4 the 8 pound bag cost $9 which cost less

Mathematics
1 answer:
timofeeve [1]3 years ago
7 0

Answer:

The 8 pounds bag

Step-by-step explanation:

Case 1 :

a pound cost 4/3

case 2 :

a pound cost 9/8

4×8 > 9×3

then

\frac{4}{3} >\frac{9}{8}

Therefore the 8 pound bag costs less

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ioda

Answer:

44.1m

Step-by-step explanation:

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we want to figure out maximum height of

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recall that,

\displaystyle \rm t= \frac{ - b}{  2a}

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notice that, our given function is not in standard form i.e

\displaystyle f(x) = a {x}^{2}  + bx + c

let's make it so

\displaystyle h =  - 4.9 {t}^{2}  + 29.4t

therefore we got

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so substitute:

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remove parentheses and change its sign:

\displaystyle\rm t=  \frac{ -29.4}{  2 \cdot - 4.9}

simplify multiplication:

\displaystyle\rm t=  \frac{ -29.4}{  - 9.8}

simplify division:

\displaystyle  \: t  = 3

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substitute the got value of time to our given function

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simplify square:

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simplify mutilation:

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simplify substraction:

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