It is almost the end of the grading period. I have 730 out of 880 points so far in my math class which means I currently have a
B (83%). There are 90 points remaining before grades come out. My teacher rounds each student's score to the nearest percent. What is the fewest number of points I need to get and end up with a grade of...
C (at least 70%)?_____
B (at least 80%)?_____
A (at least 90%)?_____
Plz help me figure this out
C (at least 70%)?_____
B (at least 80%)?_____
A (at least 90%)?_____
Plz help me figure this out
2 answers:
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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