400-3x=112
3x=400-112=288
x=96
He is 96 years old.
1/4 is the fraction for the number of parents who prefer year round school.
Answer:
15 seconds
Step-by-step explanation:
Because the split id 25% and 75%, we could create another average pretending that there are four kids, one who ran in 12 seconds, and three who ran in 16.
Equation for averages: (a₁ + a₂ + a₃ + ...
)/ n
Plug in:<em> (12 + 16 + 16 + 16)/4</em>
Add: 60/4
Divide: 15 seconds
Answer:
y=8
n=1.5
Step-by-step explanation:
Answer:
I couldn’t add all my solotions but u can make another question so I can give it to u
Step-by-step explanation:
But this are just the graph tell me if u need solutions