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3 years ago

How to convert a scientific notation into percent??

Mathematics

2 answers:

irina [24]3 years ago

8 0

$a\in\left$

erastovalidia [21]3 years ago

8 0

Add two exponents

For example, take 2 x 10^4, which is 20,000. This is equal to 2,000,000%, or 2 x 10^6.

All you do is change 2 x 10^4 to 2 x 10^6%.

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The baker pays $0.80 per pound for sugar and $1.25 per pound for butter. Which of the following equations shows t, how much the

Lynna [10]

Answer:

(6 x $1.25) + (20 x $0.80)

5 0

3 years ago

Read 2 more answers

1) 130<br> 2) 25<br> 3) 50<br> 4) 60

pickupchik [31]

2x+5x+5=180 so x has to be 25

3 0

3 years ago

the first group of students consists of 10 and their average age was 13 years old the next group consisted of 30 students and th

Kazeer [188]

Answer: The average was 9 years old find the average age of both groups is 10 years old.

Step-by-step explanation:

Formula foe average : $\text{Average} =\dfrac{\text{Sum of all observations}}{\text{Number of observations}}$

Given : The first group of students consists of 10 and their average age was 13 years old.

i.e. $13=\dfrac{\text{Sum of ages of students of first group}}{10}\\\\\Rightarrow\ \text{Sum of ages of students of first group}=13\times10=130$ (1)

The next group consisted of 30 students and their average was 9 years old.

i.e. $9=\dfrac{\text{Sum of ages of students of next group}}{30}\\\\\Rightarrow\ \text{Sum of ages of students of nextgroup}=9\times30=270$ (2)

Then from (1) and (2) , the sum of both groups (first group and next group )students = 130+270 =400

Combined students of both groups (first and next group )= 10+30=40

Now , the average of both groups = $\dfrac{\text{Sum of combined students}}{\text{combined students}}$

$=\dfrac{400}{40}=10$

Hence, the average was 9 years old find the average age of both groups is 10 years old.

4 0

3 years ago

If the mean of a negatively skewed distribution is 72, which of these values could be the median of the distribution?

loris [4]

Answer: the correct answer is 76

Step-by-step explanation:

(APEX)

4 0

3 years ago

4/3y=48<br><br>solve for y<br><br>simplify answer as much as posible

Helga [31]

$\frac{4}{3y} = 48 \\$

Inverse both sides

$\frac{3y}{4} = \frac{1}{48} \\$

Multiply both sides by 4

$4 \times \frac{3y}{4} = 4 \times \frac{1}{48} \\$

$3y = \frac{4}{48} \\$

$3y = \frac{4 \times 1}{4 \times 12} \\$

$3y = \frac{1}{12} \\$

Divide both sides by 3

$3y \div 3 = \frac{1}{12} \div 3 \\$

$y = \frac{1}{12} \times \frac{1}{3} \\$

$y = \frac{1}{36} \\$

_____________________________________________

$\frac{4}{3} y = 48 \\$

Multiply both sides by the 3

$3 \times \frac{4}{3} y = 3 \times 48 \\$

$4y = 3 \times 48$

Divide both sides by 4

$4y \div 4 = 3 \times 48 \div 4$

$y = \frac{48 \times 3}{4} \\$

$y = \frac{4 \times 12 \times 3}{4 \times 1} \\$

$y = 12 \times 3$

$y = 36$

6 0

2 years ago