What's 2/5 x -125/8?

Answers

Answer 1

Answer: 2/5 x -125/8
0.4 x -15.625

The answer is: -6.25

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I need help ASAP!Lainey is sliding down a water slide that is 387 feet long at a rate of 43 feet per second. How long will it take Lainey to travel from the top to the bottom of the slide?

9 seconds

344 seconds

-9 seconds

-344 seconds

Answers

set this up as a proportion. 43 ft/ 1 sec to 387 ft/ x sec. Now cross multiply to get:

43x = 387

now divide by 43 on each side to get:

x = 9 sec

if 3 shirts and 4 caps cost $96, and 2 shirts and 5 caps cost $99, how much did each cap and each shirt cost?

Answers

hmmm..... let us try again...but this time with a different strategy,.... by the graph method.

The system is

3x + 4y =96
2x + 5y = 99.

We find solutions of each system and then plot them on a graph.

Solutions for equation 1 = (2, 22.5) and (30, 0)
Solutions for equation 2 = (49.5 , 0) and (1, 19.4)

Now, we plot both the equations on a graph paper and note its intersecting point.

Experimentally, we find the intersecting point is (12,15)

Thus, the solution for the system is x = 12 , y = 15.

Thus, we arrive at the conclusion 1 shirt costs 12$
1 cap costs 15$

$x-cost\ of\ one\ shirt\ny-cost\ of\ one\ cap\n \n3x+4y=\$96\ \ \ and\ \ \ 2x+5y=\$99\n \n \left \{ {{3x+4y=96\ /\cdot(-2)} \atop {2x+5y=99\ /\cdot(3)}} \right. \n \n \left \{ {{-6x-8y=-192} \atop {6x+15y=297} \right. \n --------\n7y=105\ /:7\n\ny=15\ \ \Rightarrow\ \ 3x+4\cdot15=96\ \ \Rightarrow\ \ 3x=36\ /:3\ \ \Rightarrow\ \ x=12\n \nAns.\ one\ shirt\ cost\ \$12,\ \ one\ cap\ cost\ \$15$

Scar travels 50 miles an hour and a plane travels 10 miles a minute . How far will the car travel when the plane travels 500miles ?

Answers

50 minutes to travel 500 miles by plane.

50 miles per hour.

60 minutes per hour.

50 minutes out of 60 minutes (5/6).

5/6 * 50 = 41 2/3 or 42 (miles).

Help Me Please!!!!1A basketball has a diameter of 14 inches. If it fits inside a cube-shaped box that has a side length of 13

inches, what is the volume, rounded to the nearest hundredth of a cubic inch, of the space inside the box

that is not taken up by the basketball?

Answers

Answer:

The space inside the box = 2197 in³ - 1436.76 in³ is 760.245 in³.

Step-by-step explanation:

Here we have the volume of the cube box given by the following relation;

Volume of cube = Length. L × Breadth, B × Height, h

However, in a cube Length. L = Breadth, B = Height, h

Therefore, volume of cube = L×L×L = 13³ = 2197 in³

Volume of the basketball is given by the volume of a sphere as follows;

Volume = $(4)/(3) \pi r^3$

Where:

r = Radius = Diameter/2 = 14/2 = 7in

∴ Volume of the basketball = $(4)/(3) * \pi * 7^3 = 1436.76 \ in^3$

Therefore, the space inside the box that is not taken up by the basketball is found by subtracting the volume of the basketball from the volume of the cube box, thus;

The space inside the box = 2197 in³ - 1436.76 in³ = 760.245 in³.

Madison loves her stuffed dolphin toy. The toy is 27 inches long. If her brother came and sliced the dolphin in half what would the size of the dolphin be?

Answers

27 divided by two(half) =13.5 inches :)

The size of the dolphin would be 13.5 inches long because half of 27 is 13.5.

27/2 = 13.5

What's the greatest whole number that rounds to 621,860

Answers

The greatest whole number that number that rounds to 621,860 is 621,864

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What is the answer to 3+5