Answer:
15/2r - 40; Distributive Property
Step-by-step explanation:
You can use the Distributive Property to multiply the 5 across the expression in the parentheses.
5(3/2r - 8)
5 × 3/2r = 15/2r
5 × -8 = -40
Combine.
15/2r - 40
Hope this helps!
Answer:
12 students
Step-by-step explanation:
1. 7s+16=100
We know the teacher has 100 markers, and she gave each student 7. If we say that s is the number of students, then 7s is the number of markers she gave out. We also know that she had 16 left over.
2. 7s+16-16=100-16
Subtract 16 from both sides of the equation.
3. 7s=84
Simplify the equation.
4. 7s/7=84/7
Divide both sides by 7.
5. Simplify the equation. Since s is the number of students, we now know how many students there are in the teacher's class.
About 57.85 minutes worth of commercials will be shown.
Answer:
Height of the cone is thrice the height of the cylinder
Step-by-step explanation:
Let 'h' b e the height of the cylinder and 'H' be the height of the cone.
Volume of cylinder = base area × h
Volume of cone = 1/3 (base area)×H
Since the volumes are equal with same base areas,
base area × h = 1/3 (base area)×H
h = H/3
Or,
3h = H
false........................