2 years ago

If a 16 ounce box of pasta costs $1.39, what is the unit price?

Mathematics

1 answer:

elixir [45]2 years ago

8 0

0.9 because you have to divide the cost

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A stone is thrown vertically upward from a platform that is 20 feet height at a rate of 160 ft/sec. Use the quadratic function h

Nutka1998 [239]

Check the picture below.

$\textit{vertex of a vertical parabola, using coefficients} \\\\ y=\stackrel{\stackrel{a}{\downarrow }}{-16}x^2\stackrel{\stackrel{b}{\downarrow }}{+160}x\stackrel{\stackrel{c}{\downarrow }}{+20} \qquad \qquad \left(-\cfrac{ b}{2 a}~~~~ ,~~~~ c-\cfrac{ b^2}{4 a}\right)$

$\left(-\cfrac{ 160}{2(-16)}~~~~ ,~~~~ 20-\cfrac{ (160)^2}{4(-16)}\right) \implies \left( - \cfrac{ 160 }{ -32 }~~,~~20 - \cfrac{ 25600 }{ -64 } \right) \\\\\\ \left( 5 ~~~~ ,~~~~ 20 +400 \right)\implies (\stackrel{seconds}{5}~~,~~\stackrel{feet}{420})$

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1 year ago

1. Points V, W, X, Y, and Z are graphed on a number line. The coordinate of point V is –4. What points are at a distance of 9 un

sashaice [31]

Well first this one you can just count which ones are 9 units away so it could be A becuase -4+-9=-13
Another is B because -4+9=5
I hope it helps.
Comment if you need more help

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3 years ago

Read 2 more answers

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natulia [17]

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2 years ago

B2≤4 What is the solution to the inequality? b≥8 b≤8 b≤2 b≥2

Allisa [31]