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3 years ago

6

Explain how you know the quotients 540÷90 and 5,400 ÷ 900 are equal without doing any computation..

2 answers:

slamgirl [31]3 years ago

8 0

They are the same because in the second question they only have added a 0 at the end of both numbers. This 0 in this case has no value. However if there wouldn't be a 0 at both numbers then it won't be equal.

Hope i could helped :)

Lelechka [254]3 years ago

6 0

The quotients are equal because they both go in the same number of times. The second pair of quotients just have an extra 0 at the end which just changes the place value of the number.

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HELP URGENT STEP FUNCTIONS!!!!!!! Used books cost $2.25 each. Which expression represents the total number of books that can be

irinina [24]

Answer:

A. $\left \lfloor \frac{10}{2.25} \right \rfloor$

Step-by-step explanation:

We are given,

The cost of one book = $2.25

Since, it takes $2.25 to buy 1 book.

The, for $10, we can get $\frac{1}{2.25}\times 10$ i.e. $\frac{10}{2.25}$ = 4.44

Since, number of books cannot be in decimals.

So, the closest integer to 4.44 is 4.

Hence, we can buy 4 books from $10.

Now, according to the options:

A. $\left \lfloor \frac{10}{2.25} \right \rfloor = \left \lfloor 4.44\right \rfloor = 4$

B. $\left \lceil \frac{10}{2.25} \right \rceil = \left \lceil 4.44 \right \rceil=5$

C. $\frac{10}{\left \lceil 2.25\right \rceil} =\frac{10}{3} =0.33$

D. $\frac{10}{\left \lfloor 2.25\right \rfloor} = \frac{10}{2} = 5$

Hence, we see that from the options, A is correct.

3 0

3 years ago

Read 2 more answers

How do you do this one?

tankabanditka [31]

Your answer is correct... $i^2=-1$ , so

$(3+i)(i^2+8i-2)=(3+i)(-3+8i)$

Then distributing $3+i$ to both terms on the right gives

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3 years ago

Solve for x: 3x-5=2<br><br> A. no solution<br> B. 7/3<br> C. -1<br> D. 3

Alenkinab [10]

3x - 5 = 2 Add 5 to both sides
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The answer is B. $\frac{7}{3}$ .

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3 years ago

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viva [34]

Answer:

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Step-by-step explanation:

47+19+7+3= 76 animals.

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4 years ago

Can anyone please help me with this geometry question!!

kondaur [170]

Answer:

-5° < x < 26°

Step-by-step explanation:

The given parameters are;

The length of the rays forming the 62° = The length of the rays forming the 2·x + 10°

The length of the side opposite the 62° = 15

The length of the side opposite the 2·x + 10° angle = 14

Therefore, by construction, we have;

2·x + 10° < 62°

2·x < 62° - 10°

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x < 52°/2

x < 26°

Also, we have that the angle 2·x + 10° is real, therefore;

0 < 2·x + 10°

-5 < x

Which gives;

-5° < x < 26°.

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4 years ago