CreeperCosmo

EASIER ONE 
9,3,7,1 and the magic number is 66

1(9x7+3)

Think of it like this:

The area of one of the rectangular blocks is 6 inches cubed (3x2x1). The area of the cube-shaped box is 216 inches cubed (6x6x6).

Now we find how many rectangular blocks will fit in the cube-shaped block:

$${\frac{{\mathtt{216}}}{{\mathtt{6}}}} = {\mathtt{36}}$$

Therefore, 36 rectangular blocks will fit into the cube-shaped block.

Sidenote- If the answer had come out as a decimal, always round down, since this problem is asking for how many full blocks could fit, not how many parts of blocks could fit.

Hope this helped!

:D

Set up a proportion:

$${\frac{{\mathtt{6}}}{{\mathtt{7}}}} = {\frac{{\mathtt{288}}}{{\mathtt{x}}}}$$

Cross multiply:

$${\mathtt{6}}{\mathtt{\,\times\,}}{\mathtt{x}} = {\mathtt{2\,016}}$$

And simplify:

$${\mathtt{x}} = {\mathtt{336}}$$

Hope this helped!

:D

Set it up as:

$${\frac{\left({\mathtt{2}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,\small\textbf+\,}}{\mathtt{1}}\right)}{\left({\mathtt{3}}{\mathtt{\,-\,}}{\mathtt{2}}\right)}} = -{\mathtt{7}}$$

First, simplify the denominator to get 1. Since any number over 1 is the same number, you get the answer

$${\mathtt{2}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,\small\textbf+\,}}{\mathtt{1}} = -{\mathtt{7}}$$

Subtract 1 from both sides to get

$${\mathtt{2}}{\mathtt{\,\times\,}}{\mathtt{x}} = -{\mathtt{7}}$$

Then, just divide both sides by 2 and you're done!

$${\mathtt{x}} = -{\mathtt{3.5}}$$

Hope this helped!

:D

Slope is the slope a line takes on a coordinate plane. It might be a whole number like 3, or i could be a fraction such as 2/5.

If a line had a slope of 2/5, for example, the line would rise at a rate of 2 up, 5 right, or "rise over run."

For a slope of 3, this is the same thing as 3/1, meaning the line would rise at a rate of 3 up, 1 right.

If the slope is negative, such as -3/2, the line would decline at a rate of 3 down, 2 right.

Hope this helped!

:D

Well,

If the cost is $0.50 per square inch and you need to cover 486 square inches, you simply do:

(0.5)(486) or 0.5*486 which equals

$243 for 486 square inches of wrapping paper.

Hope this helped!

:D

Well,

2+2=

1+1+1+1=

0.5+0.5+0.5+0.5+0.5+0.5+0.5+0.5=

0.25+0.25+0.25+0.25+0.25+0.25+0.25+0.25+0.25+0.25+0.25+0.25+0.25+0.25+0.25+0.25=

0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125=

4.

Change the percent to a decimal:

30% = 0.30

Then you just multiply!

0.3*20=6

Hope this helped!

322 = 2(86) + 2w

322 = 172 + 2w

322-172 = 172 +2w -172

150 = 2w

150/2 = 2w/2

w=75

Hope This Helped!

:D

5^2-8(5)+21

25-8(5)+21

25-40+21

-15+21

6

Hope This Helped!

:D