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3 years ago

A shopper buys cat food in bags of 3 1/2 lbs. Her cat eats 3/4 lb each week. How many weeks does one bag last?

Mathematics

2 answers:

Vlada [557]3 years ago

4 0

4 weeks it would last

Rainbow [258]3 years ago

3 0

Answer: One bag would last about 4-5 weeks

Step-by-step explanation:

3 1/2 divided by 3/4 is equal to 4.66666667 so it’s about 4-5 weeks

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How can bees dying affect all four spheres of the Earth? (lithosphere, biosphere, atmosphere, and hydrosphere)

labwork [276]

Answer:

Step-by-step explanation:

For example, the atmosphere mixes down into the other spheres and releases precipitates; the hydrosphere overlaps onto land surfaces and water vapor rises up into the atmosphere; the biosphere reaches up into the atmosphere, down into soils and rock, and throughout the oceans, exchanging gases, water and nutrients

7 0

3 years ago

Evaluate the expression when m = -8.6 and n = -2.7. -7n+4m

Sunny_sXe [5.5K]

Answer:

-15.5

Step-by-step explanation:

-7(-2.7)+4(-8.6)=-15.5

18.9-34.4=-15.5

5 0

3 years ago

Which side of DEF is the longest ? Please help

Minchanka [31]

∠D= 87°, ∠E = 50°

Sum of three angles in a triangle is 180°

∠F = 180 - (∠D + ∠E)

∠F = 180 - (87 + 50)

∠F = 180 - 137

∠F = 43°

Side opposite to greatest angle is the longest side.

Among angle D, E and F, angle D is the greatest angle

So side opposite to angle D is the longest side which is EF

Option B is the answer

8 0

3 years ago

Read 2 more answers

Help me please and thank you

posledela

Answer:

m∠N = 85°

Step-by-step explanation:

Properties of a parallelogram

opposite sides are parallel and equal in length
opposite angles are equal
interior angles that lie on the same side of the transversal are supplementary - their sum is 180°

Therefore,

m∠M + m∠N = 180°

⇒ 95° + m∠N = 180°

⇒ m∠N = 180° - 95°

⇒ m∠N = 85°

--------------------------------------------------------------------------------------

Additional calculations

m∠M = m∠P = 95°

m∠N = m∠L = 85°

MN = LP

ML = NP

5 0

2 years ago

Students arrive randomly at the help desk of the computer lab. There is only one service agent, and the time required for inqui

Temka [501]

Answer:

It takes on average 3 minutes to service each student.

Step-by-step explanation:

In queueing problem, an M/M/1 queue model is an arrangement with a single queue, where arrivals at the queue are approximated by a Poisson distribution with mean λ and the service times follows an exponential distribution with mean μ.

The mean number of arrivals in this system is given by:

$\text{Avearge}=\frac{\rho}{1-\rho}$

Here the variable ρ is defined as:

$\rho=\frac{\lambda}{\mu}$

From the average number of arrivals in the system, we can calculate the average number of arrivals in the queue by subtracting the average number of arrivals in service.

That is,

$\text{Average arrivals in queue}=\frac{\rho}{1-\rho}-\rho=\frac{\rho^{2}}{1-\rho}$

The information provided is:

The average number of arrivals of customers is, λ = 12 students/hour.

The average service rate of a single server is, μ = 20 students/hour.

The average of an exponential distribution is:

$E(X)=\frac{1}{\mu}$

Compute the average time it takes to service one student as follows:

$E(X)=\frac{1}{\mu}$

$=\frac{1}{20}\\\\=0.05\ \text{hour}\\\\=3\ \text{minutes}$

Thus, it takes on average 3 minutes to service each student.

4 0

3 years ago