Decimal system, also called Hindu-Arabic number system or Arabic number system, in mathematics, positional numeral system employing 10 as the base and requiring 10 different numerals, the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.

3 0

2 years ago

A cylinder has radius r and height h. a. How many times greater is the surface area of a cylinder when both dimensions are multi

kondor19780726 [428]

To find it directly

A = 2 pi r h

A is proportional to rh

factor 2

A is multiplied by 2 * 2 = 4

factor 3

3 * 3 =9

factor 5

5 * 5 = 25

factor 10

10 * 10 = 100

(b) the increase in A by factor x is x^2

c(20)^2 = 400

3 0

3 years ago

While on vacation, Kayla goes for walks 3 times a day. Her morning walk is 1 1/2 times the distance of her afternoon walk. Her e

natta225 [31]

Answer: 2 miles

Step-by-step explanation:

Afternoon-x; morning- 1.5x; Evening: 1/2x

Make a equation: 1.5x+x+1/2=6

2.5x+1/2x=6

5/2x+1/2x=6

6x=12

x=2