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3 years ago

15

Why is it preferable to measure a penny in millimeters rather than centimeters or meters?

2 answers:

andrey2020 [161]3 years ago

8 0

Pennies are small so, if would be more accurate and have whole numbers. If u measured with an inch or meter, u would get a fraction for an answer.

rewona [7]3 years ago

4 0

Answer:

Because you will get whole numbers in milimeters.

Step-by-step explanation:

Since a penny is small, you would need to use small units to measure it, otherwise you will end up with a scientific notation number, or with large decimals in order to be able to express its measurements, with milimeters you will only get whole numbers and can be more exact.

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Jlenok [28]

Answer:

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3 years ago

An item is priced at $13.75. If the sales tax is 7%, what does the item cost including sales tax?

Tems11 [23]

Answer:

divide 7/100 which is 0.07

multiply that by 13.75, and you get 0.96

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3 years ago

Read 2 more answers

Nidhi is thinking of a number n, and she wants her sister to guess the number. Her first clue is that eight less than three time

Dmitriy789 [7]

Answer:

The range of numbers that Nidhi might be thinking of is between 3 and 9.

Step-by-step explanation:

We are given that Nidhi is thinking of a number n, and she wants her sister to guess the number.

Her first clue is that eight less than three times her number is between one and nineteen.

Let the number Nidhi is thinking be 'n'.

So, eight less than three times her number means that;

$(3\times \text{n}) - 8 = 3\text{n}-8$

Now, according to the question; the above equation is between one and nineteen, so;

$1< 3\text{n}-8 < 19$

Adding 8 to the whole expression;

$1+8< 3\text{n}-8 +8< 19+8$

$9< 3\text{n}< 27$

Dividing the whole expression by 3;

$\frac{9}{3} < \frac{3\text{n}}{3} < \frac{27}{3}$

$3< \text{n}< 9$

Hence, the range of numbers that Nidhi might be thinking of is between 3 and 9.

3 0

3 years ago

2x - 1 = 3x + 2 <br> 3 6<br> A) -4 <br> B) 2 <br> C) 4 <br> D) 1/4

11111nata11111 [884]

For this case we must find the solution of the following equation:

$2x-1 = 3x + 2$

If we subtract 3x from both sides of the equation we have:

$2x-3x-1 = 2$

Different signs are subtracted and the major sign is placed

$-x-1 = 2$

We add 1 to both sides of the equation:

$-x=2+1\\-x=3$

We multiply by -1 on both sides of the equation:

$x = -3$

So, the solution is $x = -3$

Answer:

$x = -3$

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3 years ago

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vladimir1956 [14]

Answer:

42.36

Step-by-step explanation:

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