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jekas [21]
4 years ago
8

Wanda started walking along a path 2 minutes (120 seconds) before Dave. Wanda walked at a constant rate of 5 feet per second. Da

ve walked along the same path at a constant rate of 10 feet per second. Graph the system of linear equations. What are the equations?
Mathematics
1 answer:
sleet_krkn [62]4 years ago
7 0
<span>Wanda started walking along a path 27 seconds before Dave. Wanda walked at a constant rate of 3 feet per second. Dave walked along the same path at a constant rate of 4.5 feet per second. How long after Dave starts walking will he catch up with Wanda ?
***
let x=travel time of Dave
x+27=travel time of Wanda
speed*travel time=distance (same for both Wanda and dave)

..
4.5x=3(x+27)
4.5x=3x+81
1.5x=81
x=54
How long after Dave starts walking will he catch up with Wanda ? 54 sec</span>
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Can someone help me pls
iVinArrow [24]

Answer:

\frac{8}{27}

Step-by-step explanation:

\frac{2}{3}  \times  \frac{2}{ 3}  =  \frac{4}{9}

because its cubed, times by 2/3 again.

\frac{4}{9}  \times  \frac{2}{3}  =  \frac{8}{27}

hope this helps

6 0
3 years ago
If f(x)=x^2-1 and g(x)=-2x-3, what is the domain of (fog)(x)?
Iteru [2.4K]

Answer:

The domain of (fog)(x)  is  \begin{bmatrix}-8  , -1\end{bmatrix}

Step-by-step explanation:

Given function as :

f(x) = x² - 1      And

g(x) = - 2x - 3

So, Function (fog)(x) = ( -2x - 3 )² - 1

Or,  (fog)(x) = ( 4x²  + 12x + 9) - 1

Or,   (fog)(x) =  4x²  + 12x + 8

Or,   (fog)(x) =  4x²  + 4x + 8x + 8

Or,   (fog)(x) = 4x ( x + 1 ) + 8 ( x + 1 )

Or,   (fog)(x) =  ( 4x + 8 ) ( x + 1 )

∴    (fog)(x)  lies between  - 8 to - 1

Hence The domain of (fog)(x)  is  \begin{bmatrix}-8  , -1\end{bmatrix}    Answer

6 0
4 years ago
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SOVA2 [1]
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6 0
4 years ago
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WINSTONCH [101]
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2 days = 48 hours

3 days = 72 Hours
7 0
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MArishka [77]

Answer:

The answer is A

Step-by-step explanation:

I have already tried it and I got it correct not clikbait please trst

6 0
4 years ago
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