How could you find which weighs more, one tone of pillows or one ton of bowling balls?

Answers

Answer 1

Answer: Neither! As you said ''a ton'' for both of them. Also IF it refers to mass then they are obviously the same. My answer is: Neither.

Answer 2

Answer: by measuring them both

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at a wonderful water park, the water trough ride $2.75 per ride. if you have $15, then how many times could you ride

Answers

Answer:

5 times

Step-by-step explanation:

Since it is 2.75 dollars per ride if you multiply 2.75 times 5 you get $13.75 and you cant add anymore.

DO 15\2.75 (Divide)

You should get 5.4545454545

So you will have to round

So you can ride it about 5 times

When simplified, which of the following expressions has a coefficient of 5? -4x - 9x -4x + 9x 4x - 9x 4x - (-9x)

Answers

-4x - 9x = -13x
-4x + 9x = 5x
4x - 9x = -5x
4x - (-9x) = 4x + 9x = 13x
i.e. the second option is the answer

Answer:

-4x + 9x is your answer

hope this helps :)

Step-by-step explanation:

A rectangle has an area of 30 square meters and a perimeter of 34 meters. What are the dimensions of the rectangle?

Answers

$The\ rectangle:a\ *\ b\n\n \left\{\begin{array}{ccc}ab=30\n2a+2b=34&/:2\end{array}\right\n\n\left\{\begin{array}{ccc}ab=30\na+b=17\end{array}\right\n\n\left\{\begin{array}{ccc}ab=30\na=17-b\end{array}\right\n\nsubstitute:\n\n(17-b)b=30$

$-b^2+17b-30=0\n\na=-1;\ b=17;\ c=-30\n\n\Delta=b^2-4ac\n\n\Delta=17^2-4\cdot(-1)\cdot(-30)=289-120=169;\ \sqrt\Delta=√(169)=13\n\nb_1=(-17-13)/(2\cdot(-1))=(-30)/(-2)=15;\ b_2=(-17+13)/(2\cdot(-1))=(-4)/(-2)=2\n\na_1=17-15=2;\ a_2=17-2=15\n\nAnswer:The\ rectangle:15m\ *\ 2m.$

Answer:

15m x2m

Step-by-step explanation:

Just Checking2. A consumer watchdog organization received customer complaints about
the performance of one brand of batteries. To investigate, the researchers
purchased 24 of these batteries and ran them until they died. This sample
lasted a mean of 47 hours with a standard deviation of 3 hours.
a) What assumption must we make about battery life in order to use a t
model?
b) Find a 95% confidence interval for the mean lifespan of this brand of
batteries.
c) Write a conclusion based on your confidence interval.

Answers

The answer is b because 95 confidence is interval for the mean lifespan

5 to the power of 7 divided by 5 times 5 to the power of 3

Answers

You have to do the integers first. 5 to the 7th power is 78,125. 5 to the 3rd power is 75. Now you have to divide 78,125 by 5. It would be 15,625. Now you have to multiply 15,625 by 75 to get 1,171,865.

What is the greatest common factor of 32 and 48

Answers

Turn each number into the product of it's prime factors.

32=16x2=2x2x2x2x2=2^5

48=24*2=6x4x2=2x3x2x2x2

Pick the highest number that occurs. In this case it is 2. Now we have to see how many times it appears in both. It appears 5 times in 32 and 4 times in 48. 4 is the highest number of times it appears in the numbers so:

2^4=2x2x2x2=16

The Greatest Common Factor (GCF) of 32 and 48 is 16.

The factors for 32 are −32,−16,−8,−4,−2,−1,1,2,4,8,16,32.

The factors for 48 are −48,−24,−16,−12,−8,−6,−4,−3,−2,−1,1,2,3,4,6,8,12,16,24,48.

List of all the factors for 32 and 48.

32=−32,−16,−8,−4,−2,−1,1,2,4,8,16,32
48=−48,−24,−16,−12,−8,−6,−4,−3,−2,−1,1,2,3,4,6,8,12,16,24,48

The common factors for 32,48 are −16,−8,−4,−2,−1,1,2,4,8,16.−16,−8,−4,−2,−1,1,2,4,8,16

The GCF of numerical factors −16,−8,−4,−2,−1,1,2,4,8,16 is 16.

16

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