math review

Question 1

what are integers

Answer 1

negitaive and postive whole numbers

-4, 4,

Question 2

mode

Answer 2

number that shows up most

1123456
1=mode
mode=most

Question 3

median

Answer 3

numbers in order of least to greatest

1123456

Question 4

mean

Answer 4

all the numbers added up divided by how many numbrs there are

1123456= 21/7
7=how many toal numbers

Question 5

whats the hack to subtracting integers

Answer 5

keep, change oppiste

kco
**5 - 6= 5 + -6
**

keep the first number, chage the - to a +, do the opsite of the 2nd number

Question 6

pemdas

Answer 6

say what it is

say it,

Question 7

commutative property

for addition and multipication

Answer 7

a* b = B * a

2 numbers

23 = 3 2

Question 8

associative property

for addition and multipication

Answer 8

(a* b) * c = (b * c) * a

3 numbers
order of numbrs is irrilvent

7 * 9 * 10 = 7 * 10 * 9

Question 9

a/b =

where a is the numerator and b is the denmenator

Answer 9

a divided by b

Question 10

distributive property

Answer 10

a(b + c) = a * b + a * c

distribute number to break out of the ( )

Question 11

ray

Answer 11

one end,
other side goes on forever

Question 12

segment

Answer 12

has an end

Question 13

line

Answer 13

goes on forever

Question 14

area of a triangle formula

Answer 14

a= b*h/2

area= base* hight divided by 2

Question 15

constant

Answer 15

a term with no variables

12= a constant

Question 16

term

Answer 16

a number with a varibale

5b 6

Question 17

formula to solve for X

Answer 17

• get x by itself
• distribute (if needed)
• combine like terms (if needed)
• -/+ on both sides
• then / or *

doesnt matter if you choose to work with a constant or variable first

do pemda in reverse order

Question 18

how to get rid of *

Answer 18

do the inverse which is divison

Question 19

how to get rid of /

Answer 19

do inverse which is multipication

Question 20

for what equation are we going to have to do pemdas in reverse order

Answer 20

equations where you have to solve for X

Question 21

literal equation

Answer 21

an equation that invlves 2 or more variables

5x + 2y = 4

Question 22

how to solve a literal equation

-2x + 5y = 12
show me how to solve for y in this example

Answer 22

• draw your line
• you have to get 5y by itself
• so, do inverse of -2x on both sides (+2x)
• equation is now
• (5y= 12 + 2x)
• (get rid of 5) so divide by 5 on both sides of equation
• y= 12/5 + 2x/5

Question 23

ratio

Answer 23

compares 2 numbers by divison

can be written 3 ways
a/b
a:b
a to b

Question 24

unit rate

Answer 24

rate with denomenator as 1

a/1

Question 25

rate

Answer 25

a ratio that compares quantitis measured in diffrent units

Question 26

cross product

Answer 26

a/b= c/d
a * d = b * c

x/7 = 4/5
x * 5 = 7 * 4

Question 27

what is this trying to solve?

a= P% * B

a= answer, b=whole p%=percent

Answer 27

percent, (its trying to solve percents)

a=.28* 40
.23=p%
40=b
a=11.2

aftersaying all this describe whats written above

Question 28

what is always after “of” regarding precents

Answer 28

the whole or “b”
(is always after “of”)

Question 29

y * 3

Answer 29

3y

y * y * y

Question 30

what does the - mean in this equation

-(4x + 12) =

Answer 30

-1

Question 31

what is a percent equation

Answer 31

a= p % * b

a equals p percent times b
a is the part b is the base p is percent

Question 32

what is the percent porportion

Answer 32

part/whole = percent/ 100
to solve you do cross product
a/b=p/100
a= part
b=base (whole)
p= percent out of 100

Question 33

imdiatly after what word is base

Answer 33

of

Question 34

after what word is part

Answer 34

is