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Novosadov [1.4K]
3 years ago
11

Devaughn's age is three times Sydney's age. The sum of their ages is 80. What is Sydney's age?

Mathematics
2 answers:
Gekata [30.6K]3 years ago
6 0
U times any number by 3 and see witch ones the closest
27x3=81 that's what I think and that's the closest
Brut [27]3 years ago
6 0
Sydeney is 20. Since Devaughn is three times older than sydeney she would be 60. And 60 plus 20 is 80
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solong [7]

Hey there!

We know options. B and D aren't going to be your answer because they are way too big to be equivalent to 200

In order for you to find out which one is equivalent to 200 you have to calculate you late the options until you get to 200 and then you could do process of elimination!

It can't be A because 2/10 = 0.20 aka 20%

It can't be option. C because 10/20 = 0.50 aka 50%

So none of the above would be your answer

The correct answer would most likely be: 10√2

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

8 0
3 years ago
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Answer:

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Step-by-step explanation:

4x3 + 12x2 = 40x

Subtract 40x from each side

4x3 + 12x2 - 40x=0

Factor out 4x from each term

4x( x^2 +3x-10) =0

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5*-2 =-10

5+-2 =3

We have (x+5) (x-2)  

Replace that in the equation

4x ( x+5) (x-2) =0

Using the zero product property

4x= 0  x+5 =0   x-2 =0

x=0    x=-5      x=2

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3 years ago
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We can consider that the runner did an acceleration of 0.8 m.s during the 10 seconds of difference.
We can deduce that the runner did an acceleration of 0.08 m.s every second during this time.
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Answer:

Here is your answer

Step-by-step explanation:

√3

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Answer:

0 is rational

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Step-by-step explanation:

5 0
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