Answer: 4r = 4
Step-by-step explanation:
Ruth bought 4 rulers and each ruler is to be represented by r. She therefore bought:
= 4r
She bought these for a total of $4.00 so the equation then becomes:
4r = 4.00
Equation representing situation is: 4r = 4
Answer:
The volume of the cone is 3π≈9.42.
The surface area of the cone is 9π≈28.27.
Step-by-step explanation:
If we make a section of the sphere and the cone, we have a equilateral triangle inscribed in a circle (see picture attached).
We only know the numerical value of the radius R, that is 2 m.
From the picture, we have
The radius of the base of the cone is
The height of the cone can be calculated as:
The volume of the cone can be calculated as:
The surface area of the cone is:
Answer:
1 5/6
Step-by-step explanation:
Turn the mixed fractions into improper fractions
3 4/6 = 22/6 and 1 5/6 = 11/6
Do the subtraction
22/6 - 11/6 = 11/6 or 1 5/6.
200-50=150
150/6=25
Sally will have to sell 25 pies to reach her goal.
Answer:
a is correct
Step-by-step explanation:
it is correct because we are adding