Please enable JavaScript.
Coggle requires JavaScript to display documents.
7th Grade Math, , , x² − 2xy + c, 2x2+5xy, x + 3 > 2, 25 miles per hr,…
7th Grade Math
rational numbers. is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q
fractions represents a part of a whole or, more generally, any number of equal parts
-
-
-
-
Intergers are. a whole number (not a fractional number) that can be positive, negative, or zero
-
-
Ratios and Porportions
porportion. a part, share, or number considered in comparative relation to a whole.
-
-
ratio the quantitative relation between two amounts showing the number of times one value contains or is contained within the other.
if there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to six
-
-
-
percents
a tip is a sum of money customarily given by a customer to certain service sector workers such as hospitality for the service they have performed, in addition to the basic price of the service
-
a compulsory contribution to state revenue, levied by the government on workers' income and business profits, or added to the cost of some goods, services, and transactions.
-
-
-
-
-
-
-
-
-
For example, we could use y = price in dollars, x = gas in gallons, and a constant of proportionality k to represent the amount of money you have to pay at the gas station: y = kx. In other words, the price you pay is in direct proportion to the gallons pumped.
-
-
-
you order your data from smallest to largest, and then find the data point that has an equal amount of values above it and below it.
-
-
-
-
-
If you wanted to leave a 20% tip, you would add 1 to 0.20 to get 1.20. Multiply the bill by 1.20 to get the total amount
-
-
-
-