What is the value of the 9 in 93

Answers

Answer 1

Answer: 93 contains two numbers: 90 and 3. 90 is the tens, and 3 is the units. Therefore, the value of 9 in 93 is 90.

Answer 2

Answer: The value in the 9 is 90

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There are approximately 7.5x10^18 grains of sand on earth.There are approximately 7x10 ^27 atoms in an average human body.Are there more grains of sand on earth or atoms in an average human body ?How do you know?

Answers

Answer:

Step-by-step explanation:

There are approximately 7.5 × 10¹⁸ grains of sand on earth.

There are approximately 7 × 10²⁷ atoms in an average human body.

A. There are more atoms in an average human body. When comparing the order of magnitude of each number 27 it greater than 18.

7 × 10²⁷ > 7.5 × 10¹⁸

B. Now we will calculate how many times more atoms are in a human body compared to grains of sand on earth.

$(7* 10^(27))/(7.5* 10^(18))$

= $(7)/(7.5)* (10^(27))/(10^(18))$

≈ 1 × 10²⁷⁻¹⁸

≈ 1 × 10⁹

≈ 10⁹

There are approximately 1,000,000,000 atoms more in a human body compared to the grains of sand on earth.

There are more atoms in a human body because 7.5*10^18 is less than 7*10^27.

How 7/3 compares to 2 1/3

Answers

7/3 written as a mixed fraction is 2 1/3

So

7/3 = 2 1/3

What is 30% of a $24.50 item

Answers

$24.50*0.3 = $7.35
The answer is $7.35

30% = 0.3
0.3 * 24.5 = 7.35
30% of $24.50 is $7.35

Water weights about 62 pounds per cubic foot. What is the weight of the water in the pound in problem 4?

Answers

48 x 62 = 2976 is the answer

Whats a function rule for -3,-7,-11,-15

Answers

Answer:

Subtract 4

Step-by-step explanation:

-3 - 4 = -7

-7 - 4 = -11

-11 - 4 = -15

What is the theoretical probability of a coin landing tails up?

Answers

Answer:

The probability that a fair coin lands tail up is 1/2, which is equal to 0.5.

Step-by-step explanation:

There are two possible outcomes when a coin is flipped (saving for the case when the coin lands on its side.)

The coin lands head-up;
The coin lands tail-up.

If the coin is fair, the two outcomes should be equally likely. In that case, apply the following formula:

$\begin{aligned}&\text{Probability that the coin lands tail-up}\n =&\frac{\text{Number of outcomes that the coin lands tail-up}}{\text{Total Number of equally-likely possible outcomes}}\n=&(1)/(2) \n=& 0.5 \end{aligned}$ .

Credit for the phrasing of this probability formula goes to the Khan Academy article "Probability: the basics".

Answer: 1:2

Step-by-step explanation:

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