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3 years ago

What is 10% of 30 what is the answer

1 answer:

8 0

For your problem, you would have to covert 10% into a decimal = .10 by moving the decimal point 2 times to the left since percent is based from 100. Then you would multiply .10 by 30 and get 3.

In a simpler way, you can move the decimal point once to the left since 10% has one zero. If you do that you get 3. That is just a small, efficient trick.

Hope you find this useful :)

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Write each fraction as a decimal. Use bar notation if necessary odds only

bija089 [108]

Answer:number one=0.4667 and two is 0.44444444444

Step-by-step explanation:

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3 years ago

Which equation does the graph of the systems of equations solve? 2 linear graphs. They intersect at 1,4

Pepsi [2]

Answer:

See below.

Step-by-step explanation:

There is an infinite n umber of systems of equations that has (1, 4) as its solution. Are you given choices? Try x = 1 and y = 4 in each equation of the choices. The set of two equations that are true when those values of x and y are used is the answer.

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3 years ago

Which set of numbers represents solutions of the inequality m>20?

zlopas [31]

Answer:

{21, 22, 23, 24}

Step-by-step explanation:

m>20 means that m is greater or more than 20, therefore 21, 22, 23, and 24 are all greater than 20 so that is the answer.

8 0

3 years ago

Read 2 more answers

In math class, Carl and Angela are debating about integers and absolute value. Carl said two integers can have the same absolute

stich3 [128]

Answer:

Carl statement is correct

Step-by-step explanation:

Absolute value is the value of the number without considering the sign of the number.

Absolute value of two integer can be same

example absolute value of -3 and 3

absolute value of |-3| = 3

absolute value of | 3 | = 3

hence, two integer have same absolute value.

so, Carl statement is correct about the absolute value.

4 0

3 years ago

Anna set up a lemonade stand on her block over the summer. She recorded each day’s high temperature and the number of cups of le

Alexxx [7]

Answer:

Residual = -2

The negative residual value indicates that the data point lies below the regression line.

Step-by-step explanation:

We are given a linear regression model that relates daily high temperature, in degrees Fahrenheit and number of lemonade cups sold.

$y = -34+ \frac{3}{5} x$

Where y is the number of cups sold and x is the daily temperature in Fahrenheit.

Residual value:

A residual value basically shows the position of a data point with respect to the regression line.

A residual value of 0 is desired which means that the regression line best fits the data.

The Residual value is calculated by

Residual = Observed value - Predicted value

The predicted value of number of lemonade cups is obtained as

$y = -34+ \frac{3}{5} (95)\\\\y = -34+ 3 (19)\\\\y = -34+ 57\\\\y = 23$

So the predicted value of number of lemonade cups is 23 and the observed value is 21 so the residual value is

Residual = Observed value - Predicted value

Residual = 21 - 23

Residual = -2

The negative residual value indicates that the data point lies below the regression line.

7 0

3 years ago