76 Im pretty sure but im not 100 percent sure i remember this
Answer:
Step-by-step explanation:
Given the rational number :
0.9, -2/1/2, 0.25, -3/4
Converting all to decimal;
0.9 = 0.9
-2 1/2 = - 2.5
0.25 = 0.25
-3/4 = - 0.75
Kindly check the ttcjed picture for the number line graoh
11.424242
isolate the repeating part
11+0.424242
focus on the repeating part
0.42424242
how many places till it repeats again?
2
let's say it is x
x=0.42424242
multiply by 100
100x=42.424242
subtract them
100x-x=42.42424242-0.42424242
the infinite repeats cancel and we get
99x=42
divide by 99

so
Answer:
130 expected hits
Step-by-step explanation:
520 attempts times 0.25 is 130