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Andrei [34K]
1 year ago
12

Helpl i have cookies

Mathematics
1 answer:
artcher [175]1 year ago
3 0

Answer:30

Step-by-step explanation:6 times 4 is24 and to the nearest 100 it will be 30

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A

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Which graph below has an EULER PATH?
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8 0
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Read 2 more answers
a) Suppose that a large mixing tank initially holds 300 gallons of water in which 50 pounds ofsalt have been dissolved. Pure wat
Kay [80]

Answer:

x  =  50*e∧ -t/100

Step-by-step explanation:

We assume:

1.-That the volume of mixing is always constant 300 gallons

2.-The mixing is instantaneous

Δ(x)t   =  Amount in  - Amount out

Amount  =  rate * concentration*Δt

Amount in  =  3 gallons/ min * 0  =  0

Amount out  = 3 gallons/min *  x/ 300*Δt

Then

Δ(x)t/Δt  =  - 3*x/300    Δt⇒0   lim Δ(x)t/Δt  =  dx/dt

dx/dt  =  - x/100

dx/ x  =  - dt/100

A linear first degree differential equation

∫ dx/x   =  ∫ - dt/100

Ln x  =  - t/100  +  C

initial conditions to determine C

t= 0     x =  50 pounds

Ln (50) = 0/100 * C

C =  ln (50)

Then final solution is:

Ln x  =  - t/100  + Ln(50)   or

e∧ Lnx   =  e ∧ ( -t/100 + Ln(50))

x  =  e∧ ( -t/100) * e∧Ln(50)

x  = e∧ ( -t/100) * 50

x  =  50*e∧ -t/100

4 0
2 years ago
The sum of two numbers is 67. the smaller number is 3 less than the larger number. what are the two numbers?
V125BC [204]
Let the larger number be x
The smaller number would be x-3 

(x-3)+x=67 
2x-3=67 
2x=67-3 
2x=64 
x=64/2 
x=32 

Therefore the larger number is 32 and the smaller is (32)-3= 29 

Hope I helped :) 
7 0
3 years ago
Please help, make sure to do a step by step so i'm not cheating, i just need some help .
sashaice [31]
If I am correct it should be the second one
8 0
3 years ago
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