We know there is 57 members are in the math club and there is twice as many sixth grades than the seventh. To find out how many sixth graders are in the club, we do:
x = seventh graders
2x = sixth graders
2x + x = 3x
57=3x
57 ÷ 3 = 3x ÷3
19 = x
So there is 19 seventh graders and 19×2= 38 sixth graders
You want the explanation. Or answer?
Answer:
1 1/2
Step-by-step explanation:
I would recommend using a mixed fraction calculator by calculator soup it really helps me with fractions.
EXPLANATION
Since the circumference of the circle is 9.42, we can get the diameter by applying the following relationship:
Isolating the diameter:
Plugging in the numbers:
Therefore, the diameter is equal to 3 inches.
125=5 packets of pencils
each package contains 8 red
5 packages contain 5×8=40
In 125 pencils 40 are red.
