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Sidana [21]
3 years ago
11

How do I work this out

Mathematics
1 answer:
gregori [183]3 years ago
4 0
P = a + b + c where a < b < c

P = 42 in
b = 18 in
a = x
c = 4x - 1

The equation:

x + 18 + 4x - 1 = 42    |combine items

5x + 17 = 42      |subtract 17 from both sides

5x = 25    |divide both sides by 5

x = 5 (in)

c = 4 · 5 - 1 = 20 - 1 = 19 (in)

Answer: The length of the longest side is 19 in.
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Find the volume of a cube 8 1/8 cm.
vichka [17]
I hope this helps you



8 1/8 65/8



Volume =(65/8)^3



Volume =274625/512



Volume =536,376
6 0
3 years ago
Read 2 more answers
An animal shelter spends 5.50 per day to care for each bird and 8.50 per Day to care for each cat and a notice that the shelter
Deffense [45]

Answer:

19 birds

Step-by-step explanation:

First, I wrote my two equations:

5.5x +8.5y = 291.5

x + y = 41

Next, I got the variable y by itself in the second equation. Subtract x to get y = -x + 41. Then, I substituted what y equaled into the first equation. It should look like this: 5.5x + 8.5(-x+41) = 291.5. Distribute 8.5 to get 5.5x -8.5x + 348.5 = 291.5. Subtract 5.5x and 8.5x to get -3x. It should look like this: -3x + 348.5= 291.5. Subtract 348.5 from 291.5 to get -57. Now, you should have -3x = -57. Divide -3 from both sides, to get x = 19. So, there are 19 birds. If you want to go even further, 41-19= 22, which means there are 22 cats. Hope this helped!

6 0
3 years ago
I NEED HELP ASAP
loris [4]

Answer:

V = PI*r2h

In plain english the volume of a cylinder can be calculated by squaring the radius, multiplying that value by PI, then multiplying by the height. You can also think of it as finding the area of a flat circle (PI * radius squared) and multiplying by the height to find volume.

Here is a step-by-step case that illustrates how to find the volume of a cylinder with a radius of 3 inches and a height of 5 inches. In this example PI will be 3.14.

V = pi * r2 * h

= pi * 32 * 5

= pi * 9 * 5

= 3.14 * 45

= 141.37 cubic inches

Step-by-step explanation:

The formula for the volume of a cylinder is V=Bh or V=πr2h . The radius of the cylinder is 8 cm and the height is 15 cm.

6 0
2 years ago
Reuben bought a bike from an online sports store. The bike was shipped to his home in Sterling, Alberta from Provo, Utah. The li
Nata [24]

Answer:

CAD 708.76

Step-by-step explanation:

Multiply US$688 by the conversion factor 1.02 CAD / US$1:

The result is CAD 708.76

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2 years ago
RJ read 40 pages of gis book in 50 minutes. How many pages can I read in 80 minutes?
lisov135 [29]

Answer:

64 pages

Step-by-step explanation:

40 pg = 50 min

8 pg = 10 min

64 pg = 80 min

5 0
2 years ago
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