Yesterday, 4/7 of the 210 students in a contest gave their speeches. How many students gave their speeches?
1 answer:
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The easiest way to solve a problem like this is to cross multiply and solve
The problem gives us a ratio
2 pounds of granola = 3 pounds of raisins
which makes a ratio of
The other ratio is
? pounds of granola = 24 pounds of raisins
which makes a ratio of
To solve, set them equal to each other ...
Now we must cross multiply...
To cross multiply, we multiply 2 and 24
and we multiply 3 and x
Now we have an equation to solve!
3x = 48
To solve and get your final answer, divide...
x =
x = 16
You'll need 16 pounds of granola
The problem gives us a ratio
2 pounds of granola = 3 pounds of raisins
which makes a ratio of
The other ratio is
? pounds of granola = 24 pounds of raisins
which makes a ratio of
To solve, set them equal to each other ...
Now we must cross multiply...
To cross multiply, we multiply 2 and 24
and we multiply 3 and x
Now we have an equation to solve!
3x = 48
To solve and get your final answer, divide...
x =
x = 16
You'll need 16 pounds of granola