Answer: 4/5 , 3/10
Step-by-step explanation:
P(not drawing black marble)=
= 8/10
=4/5
P(drawing a red marble)=
=3/10
Answer:
7.3
Step-by-step explanation:
Two minuses, one minus inside a bracket and one outside, make a plus.
2-(-5.3) = 2+5.3
= 7.3
Answer:7/12
Step-by-step explanation:there are 12 coins in total and 7 of them are pennies
45/120 = 3/8
as the simplest fraction
Answer:
x=3.3333 in decimal, x=10/3 in improper fraction form
Step-by-step explanation:
Given -> 6x-7=13
Add 7 to both sides -> 6x=20
Divide both sides by 6 -> x=20/6
Simplify by a factor of 2 -> x=10/3
Convert to decimal form -> x=3.333333