1/8×3/6=3/48=1/16 the answer is d
Use the formula
x
=
−
b
2
a
x
=
-
b
2
a
to find the maximum and minimum.
(
−
3
4
,
41
8
)
So 60% of the class are boys, but we're given the number of girl students. We know that the remaining 40% of the class are girls, which equals 12 students. To find out the total number of students in the class we can divide the number we're given into 10%, which we can then multiply to give 100%.
So 40% of the class equals 12 students, we divide by 4 to give 10%, so 12 ÷ 4 = 3. So 10% of the total class is 3 students, we times by 10 to find 100% of the class, so 3 x 10 = 30 students.
Answer:
Step-by-step explanation:
The formula of a surface area of a ball (sphere):
R - radius
We have R = 15in. Substitute:
If you want to get an approximation, then:
Answer:
Luisa has $18
Step-by-step explanation:
Let us solve the question
∵ Carlos has $24
∵ Carlos has 1 as much money as Luisa has
→ Let Luisa has x dollars
∵ Luisa has x dollars
∴ Carlos money = 1 × x
∴ Carlos money = 1 x
→ Change the mixed number to an improper fraction
∵ 1 = =
∴ Carlos money = x
→ Substitute the Carlos money by 24
∵ 24 = x
→ Multiply both sides by 3
∵ 24 × 3 = 4x
∴ 72 = 4x
→ Divide both sides by 4
∴ 18 = x
∴ Luisa has $18