#1 7.1 years old
#2 7.8 years old
#3 87.4
#4 74
#5 7.4
<span>77.5% can also be written as 77.5/100, but if you're the mathematical notation police, people don't like decimals on a fraction, sooo, an equivalent form is: </span>
<span>
= (77.5)/(100) * (2/2)
= 155/200
= 31/40
= 0 31/40 </span>
Answer:
The first question would likely be y=10.
The second question would likely be x=20.
Answer:
a) x = 70
Step-by-step explanation:
70 (2) +20 +20
140 + 40
180