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zzz [600]
3 years ago
13

Divide 210kg in the the ratio 3:4​

Mathematics
1 answer:
e-lub [12.9K]3 years ago
4 0

Answer:

90: 120

Step-by-step explanation:

You have to divide it in 7 parts for the new one, so to find one part, you can do:

210 / 7 = 30 kg.

Then, the ratio would be 3 * 30 : 4 * 30 which is equal to 90: 120

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Subtract 3 1/2 from 5 1/3
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Answer:

11/6

Step-by-step explanation:

16/3 - 7/2 = 16/3 x 2/2 - 7/2 x 3/3 = 32/6 - 21/6 = 32-21/6 = 11/6

8 0
3 years ago
Read 2 more answers
A water tank is in the shape of a right circular Austin simulato water tank is in the shape of a right circular Cylinder with a
Burka [1]
⓵ To calculate the volume of a right circular cylinder, the formula is π times the radius of the circular base² time the height of the cylinder.

⓶ Now that we know that the equation to calculate the volume of a right circular cylinder is :

V = π x (r²) x h

You need to find the numbers to replace the volume (V) and the height (h) in the formula.

We already know that the volume is 320 square feet and that the height is 20 feet.

So we are left with a formula looking like this :

320 = π x (r²) x 20

⓷ Now we need to find the radius of the circular base! To do so, you need to solve this equation and isolate the “r”. Start by simplifying the right side :

320 = π x (r²) x 20
÷20 ÷20

↓

16 = π x r²
÷π ÷π

↓

5,09 ⋍ r²
√ √

↓

2,26 feet ⋍ r

⓸ Now that we knoe the value of the radius of the circular base, all there’s left to do is multiply this number by two in order to find the diameter of the water tank :

2,26 x 2 = d

↓

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So your final answer is : the diameter of the water tank is about 4,51 feet.

** Since I devided by “π”, all the answers I wrote from that point are rounded to the nearest hundredths just to make things easier to visualize, but I kept all of the decimals when doing the calculations. So it is possible that your answer might differ slightly from mine if you use the rounded numbers to calculate everything. Just keep that in mind!

I hope this helped, if there’s anything just let me know! ☻
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3 years ago
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3 0
3 years ago
When solving a word problem involving many different kinds of rational numbers, what steps do you go through to make sure you ar
marshall27 [118]

Step 1. READ THE QUESTION CAREFULLY!!!!!!

Step 2. Turn the problem into equations.

Step 3. Substitute/Eliminate variables.

Step 4. Find the first variable.

Step 5. Replace the variable1 with its correct number.

Step 6. Get your variable2.

Step 7.Do steps 3-4 until you have all the variables.

Step 8. Double check.

And you are done!

7 0
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