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yKpoI14uk [10]
2 years ago
15

Reggie, Alvin, and Jose are member of a relay running team. Reggie finished his leg of the race 2.45 seconds faster than Alvin a

nd 3.81 seconds slower than Jose. If Reggie's time for his leg of the race was 57.12 seconds. What was the total time for the team? Show your work.
Mathematics
1 answer:
lorasvet [3.4K]2 years ago
8 0
From the given, we expressed the time that each of the team members ran in mathematical expression.
 
                Reggie = 57.12 seconds
                 Alvin = 57.12 + 2.45 seconds = 59.57 seconds
                 Jose = 57.12 - 3.81 seconds = 53.31 seconds
We then sum up all the time we calculate to determine the total time for the team. The answer is therefore 170 seconds. 
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Ursula sold 47 copies her new app for $26 each. How much money did Ursula make? Use the numbers below to fill in the area model.
bagirrra123 [75]
She made Atleast 1222 dollars for all of her apps sold
4 0
2 years ago
Help me please ...........
Llana [10]

Answer:

D.

\sqrt{384}

Step-by-step explanation:

\sqrt{384}

\sqrt{192 \times 2}

\sqrt{96 \times 2 \times 2}

2 \sqrt{48 \times 2}

2 \sqrt{24 \times 2 \times 2}

2 \times 2 \sqrt{12 \times 2}

4  \sqrt{6 \times 2 \times 2}

4 \times 2 \sqrt{6}

8 \sqrt{6}

Therefore Option D is correct..!

6 0
3 years ago
Where would (0.5,2) be potted ? Please answer this !!
NISA [10]

 (0.5,2)

0.5 is x value

2 is y value

         l

         l

---------------

        l

        l

x value is on dashed line (0.5)

y value is on more separated line going up and down. (2)

To plot 0.5, you can put it as an equation. 0.5= 1/2. So to plot it, 0.5 is half of 1. So plot it as in between the 1 and 0.

To plot 2 go up to the two on the y axis and then go over 0.5 and plot a point.

That is you're plotted point for (0.5,2)


Hope it helps!

7 0
3 years ago
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2xy if y=-3 x=5 help
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The answer is -30
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6 0
3 years ago
Read 2 more answers
Find the volume of the largest rectangular box in the first octant with three faces in the coordinate planes and one vertex in t
Tresset [83]

Answer: The volume of largest rectangular box is 4.5 units.

Step-by-step explanation:

Since we have given that

Volume = xyz

with subject to x+2y+3z=9

So, let z=\dfrac{9-x-2y}{3}

So, Volume becomes,

V=xyz\\\\V=xy(\dfrac{9-x-2y}{3})\\\\V=\dfrac{9xy-x^2y-2xy^2}{3}

Partially derivative wrt x and y we get that

9-2x-2y=0\implies 2x+2y=9\\\\and\\\\9-x-4y=0\implies x+4y=9

By solving these two equations, we get that

x=3,y=\dfrac{3}{2}

So, z=\dfrac{9-x-2y}{3}=\dfrac{9-3-3}{3}=\dfrac{3}{3}=1

So, Volume of largest rectangular box would be

xyz=3\times \dfrac{3}{2}\times 1=\dfrac{9}{2}=4.5

Hence, the volume of largest rectangular box is 4.5 units.

4 0
3 years ago
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