Vocab 1
A standard system of measurment used by all scientists.
The metric system
Basic unit of length in the metric system.
meter
One hundreth of a meter.
centimeter
One thousandth of a meter.
millimeter
One thousand meters.
kilometer
The basic unit of volume in the metric system.
liter
One thousandth of a liter.
milliliter
A basic unit of mass in the metric system.
kilogram
One thousandth of a kilogram.
gram
One thousandth of a gram.
milligram
These numbers are all positive and start with the number 1 and go up from there
Natural numbers –
Are whole numbers that also include all the negative whole numbers. So they are as small as -infinity and as big as infinity. Integers do not include fractions or decimals
Integers –
Are numbers that you make by dividing one integer by another integer (but not dividing by 0). They also include terminating fractions and decimals. Terminating means that it has an end. 2.457 is a terminating decimal. ½ is a terminating fraction
Rational numbers –
a ratio that compares two quantities measured in different units
rate-
statement that two rates or ratios are equivalent
proportion-
rate in which the second quantity (denominator) is one unit
unit rate-
a value that does not change
constant-
a relationship between two quantities in which the rate of change is constant, or the ratio of one quantity to the other is constant (can be described with the equation y=kx)
proportional relationship-
figures with the same shape but not necessarily the same size. The measures of their corresponding angles are equal and the lengths of their corresponding sides are proportional
similar shapes-
angles of two or more similar shapes that are in the same relative position
corresponding angles-
sides of two or more similar shapes that are in the same relative position
corresponding sides-
a percent of change describing an increase in a quantity
percent increase-
a percent of change describing a decrease in a quantity
percent decrease-
a ratio that compares the change in quantity to the original amount
percent of change-
increase in price discount/markdown- decrease in price
markup-