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3 years ago

8

Theresa bought 2 pineapples for $6 what’s the constant of proportionality

2 answers:

padilas [110]3 years ago

7 0

$\bf \qquad \qquad \textit{direct proportional variation}
\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\
\stackrel{\textit{\underline{c}osts of pineapples is proportional to the \underline{a}mount of pineapples}}{c=ka}
\\\\\\
\textit{we also know that }
\begin{cases}
a=2\\
c=6
\end{cases}\implies 6=k2\implies \cfrac{6}{2}=k\implies 3=k$

Illusion [34]3 years ago

5 0

The answer is $3

<em /><em>Explanation:
</em>In order for it to be proportional, they need to have an equal amount.

$6 / 2 = $3

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mafiozo [28]

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1 year ago

Evaluate the expression <br><br> x=-4.9 and y=-1.3 <br><br> -5x+7y

Flura [38]

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3 years ago

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Tom [10]

Answer:

I found the table by an online search (it is below)

Sally has $7 to spend in candy.

The price of a chocolate bar is $1.50

The price of a lollipop is $0.75

The price of gumballs is $0.25

In the table, we have the following combinations.

a) 3 chocolate bars, 3 lollipops and 4 gumballs, the price is:

3*$1.50 + 3*$0.75 + 4*$0.25 = $7.75 (she can not buy this)

b) 3 chocolate bars and 4 gumballs, the price is:

3*$1.50 + 4*$0.25 = $5.50 (she can buy this)

c) 1 chocolate bar, 5 lollipops and 2 gumballs, the price is:

1*$1.50 + 5*$0.75 + 2*$0.25 = $5.75 (she can buy this)

d) 2 chocolate bars, 2 lollipops and 8 gumballs, the price is:

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3 years ago