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3 years ago

6

1/4 increase by 1/2 What is the percent?

1 answer:

sergij07 [2.7K]3 years ago

8 0

So you would first divide 1/4 by 2 to get 1/8 and then you would add 1/8 to 1/4 to get 3/8 ,since 1/4 is 2/8. 3/8 is eqivalent to 37.5%

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What is the value of the expression? 2^0/4^2 A.0 B.1/16 C.1/8 D.1/2

stepan [7]

$\dfrac{2^0}{4^2} = \dfrac{1}{16} (Answer B)$

4 0

3 years ago

Read 2 more answers

Find the equation of the line that passes through the point of intersection of x + 2y = 9 and 4x -2y = -4 and the point of inter

Rudik [331]

Answer:

$y=-6x+10$

Step-by-step explanation:

The point of intersection of

$x+2y=9...eqn1$

and

$4x-2y=-4...eqn2$

is the solution of the two equations.

We add equation (1) and equation(2) to get,

$x+4x+2y-2y=9+-4$

$\Rightarrow 5x=5$

$\Rightarrow x=1$

We put $x=1$ into equation (1) to get,

$1+2y=9$

$\Rightarrow 2y=9-1$

$\Rightarrow 2y=8$

$\Rightarrow y=4$

Therefore the line passes through the point, $(1,4)$ .

The line also passes through the point of intersection of

$3x-4y=14...eqn(3)$

and

$3x+7y=-8...eqn(4)$

We subtract equation (3) from equation (4) to obtain,

$3x-3x+7y--4y=-8-14$

$\Rightarrow 11y=-22$

$\Rightarrow y=-2$

We substitute this value into equation (4) to get,

$3x+7(-2)=-8$

$3x-14=-8$

$3x=-8+14$

$3x=6$

$x=2$

The line also passes through

$(2,-2)$

The slope of the line is

$slope=\frac{4--2}{1-2} =\frac{6}{-1}=-6$

The equation of the line is

$y+2=-6(x-2)$

$y+2=-6x+12$

$y=-6x+10$ is the required equation

4 0

4 years ago

PLS HELP ME ASAP ON THIS THANKE YOUUU

Elina [12.6K]

View attachment

Hope this helps

3 0

3 years ago

There are 5 red marbles, 8 blue marbles, and 12 green marbles in a bag. What is the theoretical probability of randomly drawing

Zigmanuir [339]

So first we add up all the marbles. Which would be 25. Then we look to see how many red marbles there are. There are 5. You have a 5/25 chance of drawing a red marble. But you can reduce that. So when it's all said and done you have 1/5 chance of drawing a red marble.
Hope this helps!

5 0

3 years ago

Help? ^-^ WILL GIVE BRAINLIEST!<br><br> What is the slope of a line through (1, 3) and (-2, 2)?

ryzh [129]

Answer:

<em>The slope of the line is </em> $\frac{1}{3}$ <em />

Step-by-step explanation:

<u>The Slope of a Line </u>

Suppose we know a line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated with the formula:

$\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

It's given the points (1,3) and (-2,2). Let's calculate the slope:

$\displaystyle m=\frac{2-3}{-2-1}$

Calculating:

$\displaystyle m=\frac{-1}{-3}$

$\displaystyle m=\frac{1}{3}$

The slope of the line is $\frac{1}{3}$

7 0

3 years ago