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3 years ago

Clara's suitcase weighs 58

1 answer:

8 0

I'm thinking you meant to put 58.14, but maybe its something else. All you do is subtract 50 from whatever the number is. If what you meant to put was 58.14, then she has to remove 8.14 pounds

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A student council collects aluminum pop tabs to raise money to purchase a wheelchair. A company buys the pop tabs for $0.88 per

stepan [7]

Answer:

$1500

* { 1267 t / lb * 2.2046 lb/ kg * 1 kg /$ .88) }

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3 years ago

Let Xi be a random variable from a uniform distribution on the interval [0,b]. Thus the lower bound is known but not the upper b

Assoli18 [71]

Answer:

Step-by-step explanation:

Check the attached file below for the solution to the given problem

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3 years ago

Find the sum of 12a + 7b, −6a − 9, and 14a − 12b.

VARVARA [1.3K]

Answer:

20a + -5b + -9

Step-by-step explanation:

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4 years ago

Read 2 more answers

A tank contains 250 liters of fluid in which 20 grams of salt is dissolved. Brine containing 1 gram of salt per liter is then pu

Vilka [71]

Answer:

$A(t)=250-230e^{-\frac{t}{50} }$

Step-by-step explanation:

A(t) is the amount of salt in the tank at time t.

dA / dt = rate of salt flowing into the tank - rate of salt going out of the tank

dA / dt = (1 g/L)*(5 L/min) - (A(t)/250 g/L) * (5L/min)

dA / dt = 5 g/min - (A(t) / 50) g/min

$\frac{dA}{dt}+\frac{A(t)}{50} = 5\\\\The\ integrating\ factor(IF)= e^{\int\limits \frac{1}{50}dt }=e^{\frac{t}{50} }\\\\Multiplying\ through\ by\ the\ I.F:\\\\\frac{dA}{dt}*e^{\frac{t}{50} }+\frac{A(t)}{50}*e^{\frac{t}{50} } = 5*e^{\frac{t}{50} }\\\\Integrating \ both \ sides:\\\\\int\limits[ \frac{dA}{dt}*e^{\frac{t}{50} }+\frac{A(t)}{50}*e^{\frac{t}{50} }] dt=\int\limits 5e^{\frac{t}{50} } dt\\\\A(t)e^{\frac{t}{50} } =\int\limits 5e^{\frac{t}{50} } dt\\\\$

$A(t)e^{\frac{t}{50} } =250e^{\frac{t}{50} }+C\\\\A(t)=250+Ce^{-\frac{t}{50} }\\\\But\ A(0) = 20\\\\20=250+Ce^{-\frac{0}{50} }\\\\C+250=20\\\\C=-230\\\\A(t)=250-230e^{-\frac{t}{50} }$

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3 years ago

Before his shopping spree, Jim owned 133

11111nata11111 [884]

Answer:

271 to 133

Step-by-step explanation:

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2 years ago