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r-ruslan [8.4K]
3 years ago
8

How do you solve age word problems

Mathematics
1 answer:
Anna71 [15]3 years ago
5 0
These videos might help you

https://www.khanacademy.org/math/algebra/systems-of-linear-equations/systems-of-linear-equations-wor...

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If i'm getting paid 20$ a week to clean my house, and i need 600$ to buy a dog how many weeks would i have to clean?
nikitadnepr [17]

Answer:

30 weeks

Step-by-step explanation:

600/20

8 0
3 years ago
a bag contains 4 white marbles , 7 red marbles , and 5 black marbles. you randomly select 3 marbles from the bag. without replac
Ksivusya [100]
That variable from the number of black marble divide by all marble.
5/4+7+5 = 0.3125
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2 years ago
Find volume of a sphere with radius of 20 mm use 3.14 as pi
Vlada [557]

The volume of a sphere is V=4/3*pi*r^3

Since pi=3.14 and r=20, we have:

V=4/3*3.14*20^3

V=4/3*3.14*8000

V=4/3*25120

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So the volume is about 33493 1/3 mm^3

Hope this helped!

6 0
3 years ago
Simplify the following expression.
spin [16.1K]

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0y^2 + 2z^3 + 3y^3

Step-by-step explanation:

4 0
2 years ago
Arliss has two pieces of carpet runner. One is2/13 yards long and the other3/13
Lunna [17]
Solution steps:

1. Add the two given fractions.

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3 years ago
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