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2 years ago

8

A hot air balloon is dropping from a height above the ground at a steady rate of 8 feet per second. It starts from a height of 7

65 feet. After t-seconds it has hit a height of 421 feet. Set up and solve an equation for the value of t.

1 answer:

pickupchik [31]2 years ago

3 0

I believe the equation would be 765 -8t = 421. Then you would solve for t and get 43 seconds. I hope this helps!! :)

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Answer:

The amount of sales in order to meet her goal must be greater than or equal to $20,000

Step-by-step explanation:

Let

x----> represent the amount of sales Liz will need

we know that

The amount of sales for the month multiplied by the commission rate as a decimal plus the fixed amount must be greater than or equal to $2,800 each month

so

The inequality that represent this situation is

$0.03x+2,200\geq 2,800$

solve for x

subtract 2,200 both sides

$0.03x \geq 2,800-2,200$

$0.03x \geq 600$

divide by 0.03 both sides

$x \geq \$20,000$

The amount of sales in order to meet her goal must be greater than or equal to $20,000

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Check the picture below.

$\bf \textit{using the pythagorean theorem}
\\\\
c^2=a^2+b^2\implies \sqrt{c^2-a^2}=b
\qquad 
\begin{cases}
c=hypotenuse\\
a=adjacent\\
b=opposite\\
\end{cases}
\\\\\\
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-------------------------------$

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