It's rational
Rational numbers are numbers that you can put into the form of a/b.
Answer:
Volume of cone = 234.45 cm³
Step-by-step explanation:
Given:
Diameter = 8 cm
Radius r = 8 / 2 = 4 cm
Height h = 14 cm
Find:
Volume of cone
Computation:
Volume of cone = (1/3)πr²h
Volume of cone = (1/3)(3.14)(4)²(14)
Volume of cone = 234.45 cm³
Answer:
5/4
Step-by-step explanation:
4y = 5x Divide by 4
y = (5/4) x
To make y = kx from y = (5/4) x
k must be (5/4)
k = 5/4
Answer:
20 students
Step-by-step explanation:
If the class decreased by 15%, the students that she has now (17) represents a percentaje of:
100% - 15% = 85%
so<u> the 17 students are 85% of what she had</u>:
Students Percentage
17 ⇒ 85%
and we are looking for how many students she had 2 years ago, thus we are looking for the <u>100%</u> of students (the original number of studens). If we represent this number by x:
Students Percentage
17 ⇒ 85%
x ⇒ 100%
and we solve this problem using the <u>rule of three</u>: multiply the cross quantities on the table( 17 and 100) and then divide by the remaining amount (85):
x = 17*100/85
x = 1700/85
x=20
2 years ago she had 20 students
Step-by-step explanation:
Case 1 :
Case 2 :
