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frez [133]
3 years ago
7

If dave runs 1.8 kilometers in 15 minutes , what is his average rate

Mathematics
1 answer:
lana66690 [7]3 years ago
4 0
His average rate is 120 meters per minute.
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Use any method to solve the equation. If necessary, round to the nearest hundredth.7x2 − 16x = 8
Semmy [17]
7x^2 - 16x - 8 = 0

using the quadratic formula x = [ -(-16)+/- sqrt((-16^2 - 4*7-8]  / 2*7

 =   (16 +/1 sqrt 480)  / 14

=  2.71, -0.42     to nearest hundredth
4 0
2 years ago
The weight limit for a bookshelf is 25 pounds. Niyant has 60 books to put on the shelf. Each book weighs 0.45 kilograms. Can Niy
Debora [2.8K]

Answer:

no she cant she can fit 20 of them

Step-by-step explanation:

5 0
3 years ago
Armand ran the 100 yard dash in 17.18 seconds. Arturo's time has an 8 with a value 10 times the value of the 8 in Armand's time.
frosja888 [35]
8====D

He has a value of 64
4 0
3 years ago
There are 16 reams of paper in a case. How many total teams of paper are in 11 cases ?
pentagon [3]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
A dog owner wants to use 200 ft of fencing to enclose the greatest possible area for his dog. he wants the fenced area to be rec
Fiesta28 [93]
Perimeter (P) = 2 · Length(L) + 2 · Width (W) → P = 2L + 2W
Solve for either L or W (I am solving for L).
200 - 2W = 2L
(200 - 2W)/2 = L
100 - W = L

Area (A) = Length (L) · Width (W)
              = (100 - W) · W
              = 100W - W²

Find the derivative, set it equal to 0, and solve:
dA/dW = 100 - 2W
     0    = 100 - 2W
     W  = 50

refer to the equation above for L: 
100 - W = L
100 - 50 = L
        50  = L

Dimensions for the maximum Area are 50 ft x 50 ft
5 0
3 years ago
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