Question

Please help me I need help on question 3

Answer 1

`\huge \blue5 \blue3 \blue. \blue8 \blue\%`

Explanation:

to understand this

you need to know about:

• simple probability
• percent
• PEMDAS

tips and formulas:

• 
  `probability = (Number \: of \: ways \: it \: can \: happen)/(Total \: number \: of \: outcomes)`
• 
  `\% = (1)/(100)`

let's solve:

total marbles=7+2+4=13

blue marbles=7

therefore the probability is

`(7)/(13)`

let's convet it in percentage

`(7)/(13) * 100 \: \: \%`

`53.8\%`

Answer 2

54% chance she will

add all the #’s together to get 13 and divide by the # of blue marbles(7)