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sergij07 [2.7K]
4 years ago
6

A wheel diameter of 49 how many revolution does it cover to corver154

Mathematics
1 answer:
stealth61 [152]4 years ago
7 0
It must take at least 4 whole revolutions to cover 154 
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A rocket is launched vertically from the ground with an initial velocity of 64 ft/sec.
diamong [38]

we know the rocket was launched from the ground, meaning its initial height is 0, thus

~~~~~~\textit{initial velocity in feet} \\\\ h(t) = -16t^2+v_ot+h_o \quad \begin{cases} v_o=\textit{initial velocity}&64\\ \qquad \textit{of the object}\\ h_o=\textit{initial height}&0\\ \qquad \textit{of the object}\\ h=\textit{object's height}&\\ \qquad \textit{at "t" seconds} \end{cases} \\\\\\ h(t)=-16t^2+64t+0\implies h(t)=-16t^2+64t

Check the picture below.

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Which is the graph of the function f(x) = -x
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3 years ago
You are running a concession stand at a basketball game. You are selling hot dogs and sodas. Each hot dog costs $2.25 and each s
JulsSmile [24]

The required equations are use to solve this problem;

x + y =126

2.25x + 1.50y = 223.75

There are x = 49 hot dogs, and y = 77 sodas were sold.

Given that,

Each hot dog costs $2.25 and each soda costs $1.50.

At the end of the night, you made a total of $225.75.

You sold a total of 126 hot dogs and sodas combined.

We have to determine,

What equations did you use to solve this.

And How many hot dogs were sold and how many sodas were sold.

According to the question,

Let, The x represent the number of hot dogs,

And y represent the number of sodas.

Then,

You sold a total of 126 hot dogs and sodas combined.

Number of sell hot dogs + number of sell sodas = Total of hot dogs and sodas combined.

x + y =126

And Each hot dog costs $2.25 and each soda costs $1.50.

At the end of the night, you made a total of $225.75.

Then,

Cost of each hot dogs + cost of each soda = total earning end of the night

2.25x + 1.50y = 223.75

On solving both the equation,

x + y = 126\\\\x = 126-y

Substitute the value of x in the equation 2,

=2.25(126-y) + 1.50y = 225.75\\\\= 283.5 -2.25y + 1.50y = 225.75\\\\= -  0.75 y = 225.75 - 283.5\\\\=   - 0.75y   = -57.75\\\\= y = \dfrac{-57.75}{-0.75}\\\\= y = 77

Then,

Substitute the value of y in the equation 1,

x + y = 126\\\\x + 77 = 126\\\\x = 126-77\\\\x = 49

Hence, There are x = 49 hot dogs, and y = 77 sodas were sold.

To know more about the Equation click the link given below.

brainly.com/question/24070713

5 0
3 years ago
Read 2 more answers
Simplify: -3 1/2-(-12 1/4) mi
nasty-shy [4]

Answer: 35/4 miles..... (Hopefully I read correctly)

Step-by-step explanation:

(-7/2)-(-49/4)

(-7/2)+49/4

-14/4+49/4

35/4

Hope this helps!

6 0
4 years ago
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