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wel
3 years ago
13

I need help.........​

Mathematics
1 answer:
blondinia [14]3 years ago
8 0

Answer:

1/12

Step-by-step explanation:

I did reverse equations, trust me. Also mark as brainliest

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Water is pumped out of a holding tank at a rate of 6-6e^-0.13t liters/minute, where t is in minutes since the pump is started. I
astraxan [27]
Procedure:

1) Integrate the function, from t =0 to t = 60 minutues to obtain the number of liters pumped out in the entire interval, and

2) Substract the result from the initial content of the tank (1000 liters).

Hands on:

Integral of (6 - 6e^-0.13t) dt  ]from t =0 to t = 60 min =

= 6t + 6 e^-0.13t / 0.13 = 6t + 46.1538 e^-0.13t ] from t =0 to t = 60 min =

6*60 + 46.1538 e^(-0.13*60) - 0 - 46.1538 = 360 + 0.01891 - 46.1538 = 313.865 liters

2) 1000 liters - 313.865 liters = 613.135 liters

Answer: 613.135 liters



 

3 0
3 years ago
you are a grocery store you buy 4 cans of soup for 5 dollars how much would you pay for 6 cans of soup
Valentin [98]

Answer:

5.75

Step-by-step explanation:

I NEEDED POINTS LOL

7 0
3 years ago
Read 2 more answers
Jane has a pre-paid cell phone with Splint. She can't remember the exact costs, but her plan has a monthly fee and a charge for
yan [13]

Answer:

The costs of the plan are $0.15 per minute and a monthly fee of $39

Step-by-step explanation:

Let

x ----> the number of minutes used

y ----> is the total cost

step 1

Find the slope of the linear equation

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

we have the ordered pairs

(100,54) and (660, 138)

substitute

m=\frac{138-54}{660-100}

m=\frac{84}{560}=\$0.15\ per\ minute

step 2

Find the equation of the line in point slope form

y-y1=m(x-x1)

we have

m=0.15\\point\ (100,54)

substitute

y-54=0.15(x-100)

step 3

Convert to slope intercept form

Isolate the variable y

y-54=0.15x-15\\y=0.15x-15+54\\y=0.15x+39

therefore

The costs of the plan are $0.15 per minute and a monthly fee of $39

6 0
3 years ago
-1 3/5 divided by -2/3 written as mixed number
blondinia [14]
First, you must change all of this into improper fractions, like shown below.
- \frac{8}{5}\div - \frac{2}{3} =
Now you must change the sign.
- \frac{8}{5}* - \frac{2}{3} =
Then we must reciprocalize 2/3.
- \frac{8}{5}* - \frac{3}{2} =
Now we multiply, to get 2 4/10.
8 0
3 years ago
Complete the statement for the equation y =-1/2x-1/2
RUDIKE [14]

Answer:

i will answer but what do you trying to find ?

5 0
2 years ago
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