kitty<3

0 Questions
534 Answers

+5478

0

Es ist 0.5 * 280 oder 1/2 * 280

Es ist 140

kitty<3Mar 18, 2014

+5478

+3

Hello Pirateson3,

There is a calculator on this site:
http://web2.0calc.com/

I'm sure that it'll answer your question:)

kitty<3Mar 18, 2014

+5478

+3

Hi timmy,
So you would use the Distributive Property for this one:

10(2a+5)

Distribute the 10 into (2a+5)
=10*2a + 10*5
Then multiply it out.

=20a + 50

kitty<3Mar 18, 2014

+5478

+3

if i am make 200 invites that are 5x7 how many feet of paper do i need

Well, first that depends on what unit the 5x7 is. I'm assuming that is in feet.

Then, find 5*7, which is 35. So each invite is 35 feet squared.
Then, multiply this by 200 to find the total square feet of paper needed.
200*35

=7,000 square feet of paper total (only if all your starting units were feet.)

kitty<3Mar 18, 2014

+5478

0

if a new car is 29,000 and the sales tax is 6.5%, how much sales tax is being charged?

The sales tax is 6.5 percent of 29,000
6.5% is the same as 0.065

So the sales tax would be:
0.065 x 29,000

=$1,885

kitty<3Mar 13, 2014

+5478

0

How do you right 79,109km in smallest units?

Do you mean how to write it so the number seems smaller, or how to convert it to a smaller metric unit?

Assuming the second, you would convert 79,109 kilometers to millimeters.
1 km = 1000000mm

So just multiply 79,109 km by 1000000 to find the measurement in mm.

kitty<3Mar 9, 2014

+5478

+11

Hi linkandzeldaa,

So you said:
9/21=12/b
Write that as a proportion, basically:
9 over 21 equals 12 over b

Now cross multiply (the diagonals of a proportion should be equal), so:
9b = 21*12
Simplify.
9b = 252
Divide both sides by 9 to find b:)

b = 28

kitty<3Feb 28, 2014

+5478

0

2(4x-3)-8=4+2x

First, distribute the 2 into (4x-3), so:
8x-6 -8 = 4 +2x

Simplify the left side.
8x-14 = 4 + 2x
Add 14 to both sides (to move it from the left to the right side.)
8x = 16 + 2x
Now subtract 2x from both sides.
4x = 16
Divide by 4.

x = 4

kitty<3Feb 26, 2014

+5478

0

Hi Ana,

I2z – 1 = 32

add 1 to both sides.
12z = 33
then divide both sides by 12 to get z.
z = 33/12

z = 2.75

kitty<3Feb 26, 2014

+5478

+3

Hola michell,

Lorena es: l
Su papa es: p
La edad de su padre es 4 x l
= 4l

Entonces,
l = 9
así :
p = 4*9
p = 36

kitty<3Feb 24, 2014