All categories

3 years ago

Solve the equation 1/4y+9=1/2

Mathematics

1 answer:

malfutka [58]3 years ago

7 0

Answer:

y = -34

Step-by-step explanation:

Step 1

1/4 y + 9 = 1/2

1/4 + 9 - 9 = 1/2 - 9

1/4 y = -17/2

Step 2

4 * (1/4 y) = 4* (-17/2)

y = -34

Hope this helps!!

You might be interested in

Between which two integers does √ 45 lie? 44 and 46 22 and 23 6 and 7 7 and 8

erastovalidia [21]

Answer:

6 and 7

Step-by-step explanation:

lol just use a calculator ツ

5 0

4 years ago

Two quantities are related, as shown in the table:

Mnenie [13.5K]

Given:

The table of values.

To find:

The equation that best represents the relationship.

Solution:

From the given table it is clear that the value of x increasing by 2 and the value of y increasing by 3. Since y is increasing at a constant rate with respect to x, therefore the given table represents a linear relationship.

Consider any two points from the given table. Let the two points are (2,2) and (4,5). So, the equation of the line is

$y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)$

$y-2=\dfrac{5-2}{4-2}(x-2)$

$y-2=\dfrac{3}{2}(x-2)$

$y-2=\dfrac{3}{2}(x)+\dfrac{3}{2}(-2)$

On further simplification, we get

$y-2=\dfrac{3}{2}(x)-3$

$y=\dfrac{3}{2}(x)-3+2$

$y=\dfrac{3}{2}(x)-1$

Therefore, the correct option is A.

6 0

3 years ago

What symbol is used for the standard deviation when it is a sample statistic? what symbol is used for the standard deviation whe

Yuki888 [10]

You use the lower case letter s for the sample standard deviation

You use the greek letter sigma (written as $\sigma$ ) for the population standard deviation