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4 years ago

What is the value of x in the equation 0.3x = 0.2 − 0.2x? 4 1 0.5 0.4

Mathematics

2 answers:

sweet-ann [11.9K]4 years ago

6 0

0.3x = 0.2 - 0.2x

0.5x = 0.2

x =0.2/0.5 = 2/5

stira [4]4 years ago

3 0

Heya!
Let's go through this.
First, we can add 0.2x to both sides, in efforts to get all the x's on one side.
That gets us:
0.5x = 0.2.
Finally, we just divide both sides by 0.5 to isolate x, and that will give us 0.4
Hope this helps!

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In rectangle ABCD, point E lies half way between sides AB and CD and halfway between sides AD and BC. If AB=3 and BC=2, what is

Alex777 [14]

Answer:

The area of the shaded region is 3.

Step-by-step explanation:

Since point E lies halfway between AB and BC, the area of the shaded region (As) consists of two identical triangles with base equal to AB and height equal to half the measure of BC:

$A_s=2 * A_t$

Where At is the area of each triangle.

$\displaystyle A_t=\frac{AB*BC/2}{2}$

$\displaystyle A_t=\frac{AB*BC}{4}$

We know AB=3 and BC=2, thus:

$\displaystyle A_t=\frac{3*2}{4}=\frac{6}{4}$

Simplifying:

$\displaystyle A_t=\frac{3}{2}$

Finally:

$\displaystyle A_s=2 * \frac{3}{2}$

$A_s=3$

The area of the shaded region is 3.

Note the area of the shaded region is half the area of the rectangle.

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babymother [125]

1. You have the following information:

- Maria has 8 1/2 quarts of soil.
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2. Keeping this on mind, you can convert the mixed number 8 1/2 and the fracion 3/4 to decimals, as below:

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x=(8.5x1)/0.75
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Read 2 more answers

What is “3(2d-1)-2d=4(d-2)+5” ?

trapecia [35]

Answer:

Infinite solutions

Step-by-step explanation:

3(2d-1)-2d=4(d-2)+5 | Given equation

6d - 3 - 2d = 4d - 8 + 5 | Distribute

4d - 3 = 4d - 3 | Combine like-terms

4d = 4d