Two hundred thousand 200,000
twenty thousand 20,000
two thousand 2,000
two hundred 200
twenty 20
two 2
222,222
Hope I helped! : )
To make a reasonable prediction, you can create a proportion using the ratio of green beads to total beads and make it equal to x green out of 150 trials.
<u>green</u> <u>6 </u> <u>x</u>
total 20 = 150; use cross products to solve for x green beads.
15 x 6 = 20x
<u>900 </u>= <u>20x</u>
20 20
x = 45 green
A reasonable prediction would be 45 green beads based on theoretical probability.
He made an error is step 2
3x + 18 = 2x +8
subtract 2x from each side
x + 18 = 8
The question does not make sense.
The commutative property applies to addition and multiplication, not addition and subtraction.
The commutative property does not apply to subtraction or division because in those operations, the order of the numbers makes a difference, whereas in addition and subtraction the order does not make a difference.
For example:
Addition
5 + 4 = 9
4 + 5 = 9
5 + 4 = 4 + 5
Changing the order of the 4 and the 5 gives the same answer.
The commutative property does apply to addition.
Multiplication
5 * 4 = 20
4 * 5 = 20
5 * 4 = 4 * 5
Changing the order of the 4 and the 5 gives the same answer.
The commutative property does apply to multiplication.
Subtraction
5 - 4 = 1
4 - 5 = -1
5 - 4 is not equal to 4 - 5
Changing the order of the 4 and the 5 gives a different answer.
The commutative property does not apply to subtraction.
Division
5/4 = 1.25
4/5 = 0.8
1.25 is not equal to 0.8.
Changing the order of the 4 and the 5 gives a different answer.
The commutative property does not apply to division.
Answer:
A shape with two pairs of parallel lines, perpendicular lines, and two pairs of equal sides can be best described as a rectangle.