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4 years ago

Jose ordered some books online and spent a total of $133. Each book cost $8 and he paid a total of $5

Mathematics

1 answer:

Reika [66]4 years ago

7 0

Answer:

16 books

Step-by-step explanation:

133$ - 5 dollars for shipping = 128$

128$ divided by 8 = 16

Therefore, the answer is 16 books.

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I will mark you as the brainiest if you get this correct Thx so much xxx

Dvinal [7]

Answer:

125 ml

Step-by-step explanation:

250 ml is required to make 8 pancakes, so in order to make half as many pancakes, you will need half as much milk.

250 ÷ 2 = 125

8 0

3 years ago

Round 64.291666666667 And I will give u the Brainliest

lakkis [162]

Answer: 64.3

Step-by-step explanation:

It depends what decimal place you want and how accurate you want to be.

64.3

64.292

64.0

Are all acceptable

3 0

3 years ago

1. Sand falling from a chute forms a conical pile whose altitude is always equal to 4/3 the radius of the base. (a) How fast is

solong [7]

Answer:

The volume is increasing at a rate of 16286 in³/min.

Step-by-step explanation:

a) The volume of a cone is given by:

$V = \frac{1}{3}h\pi r^{2}$

Where:

r: is the radius

h: is the height

The rate of change of the volume can be calculated by using the chain rule:

$\frac{dV}{dt} = \frac{\pi}{3}[\frac{dh}{dt}r^{2} + h\frac{d(r^{2})}{dt}]$

Since h = 4/3 r we have:

$\frac{dV}{dt} = \frac{\pi}{3}[\frac{d(\frac{4r}{3})}{dt}r^{2} + \frac{4r}{3}\frac{d(r^{2})}{dt}]$

$\frac{dV}{dt} = \frac{4\pi}{9}[\frac{dr}{dt}r^{2} + r\frac{d(r^{2})}{dt}]$

$\frac{dV}{dt} = \frac{4\pi}{9}[\frac{dr}{dt}r^{2} + 2r^{2}\frac{dr}{dt}]$ (1)

With:

$\frac{dr}{dt}$ = 3 in/min

$r = 3 ft*\frac{12 in}{1 ft} = 36 in$

And by entering the above values into equation (1) we have:

$\frac{dV}{dt} = \frac{4\pi}{9}[(3 in/min)*(36 in)^{2} + 2*(36 in)^{2}*3 in/min]$

$\frac{dV}{dt} = 16286 in^{3}/min$

Therefore, the volume is increasing at a rate of 16286 in³/min.

I hope it helps you!

3 0

3 years ago

Which statement about the data is true?

Citrus2011 [14]

We can see from the given numbers in the data that there is an outlier. This means that mean or average is not a good measure of center. Also, there is no repeating number to give us the mode of the given. The answer is therefore, median is the only appropriate measure of center.

3 0

3 years ago

Read 2 more answers

Someone pls help me!!! Will give brainliest! A survey of 1000 students found that 41% of the surveyed students were freshmen, 31

Korvikt [17]

Answer:

(A) 560 students

(B) P = 0.41

Step-by-step explanation:

(Please check the attached picture for more details)

As given, a survey of 1000 students found that:

41% of the surveyed students were freshmen

=> 1000 x 41/100 = 410 surveyed students were freshmen

31% were juniors

=> 1000 x 31/100 = 310 surveyed students were junior

67% of surveyed students lived on the college campus

=> 1000 x 67/100 = 670 surveyed students lived on the campus

(A) 260 of the surveyed students were freshmen living on the campus

=> A = 410 - 260 = 150 surveyed students were freshmen NOT living on the campus

=> B = 670 - 260 = 410 surveyed students were not freshmen living on the campus

=> The number of surveyed students who were either freshmen or living on the campus:

N = A + B = 150 + 410 = 560

(B) From a previous survey you know that of interviewed juniors, only 23% live on campus (we don't really need this)

=>The probability a surveyed student is a junior or someone that lives on campus: P = (670 - 260)/1000 = 0.41

I hope this helps!

8 0

3 years ago