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PtichkaEL [24]
3 years ago
8

2. Kim is x years old. Jordan is 7 years older than Kim. Four times Jordan’s age is equal to 200. (a) Write an equation that cou

ld be used to solve for Kim’s age, x. (b) How old is Kim? (c) How old is Jordan?
Mathematics
2 answers:
meriva3 years ago
5 0
4(x+7)=200. 200 minus 28 is 172. 4x=172. X equals 43. Kim is 43. Jordan is 50
masya89 [10]3 years ago
3 0
Kim is 43 years old so jordan is 50. 

200 divided by 4 equals 50. 
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Find all of the equilibrium solutions. Enter your answer as a list of ordered pairs (R,W), where R is the number of rabbits and
zloy xaker [14]

Answer:

(0,0)   (4000,0) and (500,79)

Step-by-step explanation:

Given

See attachment for complete question

Required

Determine the equilibrium solutions

We have:

\frac{dR}{dt} = 0.09R(1 - 0.00025R) - 0.001RW

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0.09 - 2.25 * 10^{-5}R - 0.001W = 0

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0.09 -0.01125 - 0.001W = 0

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W = 78.75

W \approx 79

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When W = 0, we have:

0.09 - 2.25 * 10^{-5}R - 0.001W = 0

0.09 - 2.25 * 10^{-5}R - 0.001*0 = 0

0.09 - 2.25 * 10^{-5}R = 0

Collect like terms

- 2.25 * 10^{-5}R = -0.09

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R = \frac{-0.09}{- 2.25 * 10^{-5}}

R = 4000

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(R,W) \to (4000,0)

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Hence, the points of equilibrium are:

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4 0
3 years ago
A scientist measures a substance to be 0.8 grams. Calculate the percent of error in the measurement. Show all work for full cred
Volgvan
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In other words, if a substance has a mass of 0.55 grams and you measure it to be 0.80 grams, then the percent of error would be:

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Plz help ill give you brainlist
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The constant is 3 because it has no variable. 
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