Question

A scale on a map shows that 2 inches = 25 miles.

Part A
How many inches on the map represent 60 miles?

Enter your answer in the box.


inches
Part B
How many miles are represented by
1
4
inch on the map?

Enter your answer in the box.


miles

Answer 1

i know part A , but i dont know part B

Answer 2

Oh ok...

Answer 3

whats part B? @Vocaloid

Answer 4

again, set up a proportion and cross multiply.

Answer 5

is part B 50?

Answer 6

cross multiplying gives us

2x = (1/4)(25)
solve for x.

Answer 7

is this for part b?

Answer 8

yes...

Answer 9

i got x = 25/8

Answer 10

great, they might want it as a decimal, I'm not sure.

Answer 11

ok next :)

Answer 12

A circular picture is 8 inches in diameter.

Part A
What is the area of the picture in square inches?

A. 4π square inches
B. 8π square inches
C. 16π square inches
D. 32π square inches
Part B
A frame that is 2 inches wide surrounds the picture. What is the total area of the picture and the frame in square inches?

A. 4π square inches
B. 12π square inches
C. 36π square inches
D. 40π square inches

Answer 13

area = pi*r^2, where r is the radius of the circle.

Answer 14

how do i do that for Part A?

Answer 15

find the radius of the circle....

Answer 16

radius = (1/2)*diameter

Answer 17

you understand geny ?

Answer 18

i got 4

Answer 19

good now find the area.

Answer 20

how?

Answer 21

I already told you. please pay attention.

Answer 22

36

Answer 23

nope.

Answer 24

go back and read over what I said before.

Answer 25

16

Answer 26

you're forgetting the pi

Answer 27

it should be 16pi

Answer 28

oh sorry

Answer 29

so 4 pi and 16 pi?

Answer 30

the radius is 4 and the area is 16pi.

Answer 31

so part A is 16 pi .. whats part b?

Answer 32

for Part B, the radius increases by 2

so the new radius is 6

now find the area.

Answer 33

16?

Answer 34

no.

Answer 35

use the area equation.

Answer 36

36

Answer 37

36pi

Answer 38

yes so part b is 36 pi?

Answer 39

yes.

Answer 40

ok next! :)

Answer 41

@Vocaloid

Answer 42

start with the shaded region

Answer 43

split the region like so:

Answer 44

start by finding the area of the triangle on top

the base is 10 and the height is 3

Answer 45

whats the equationto find the area of the triangle?

Answer 46

http://lmgtfy.com/?q=area+of+triangle+equation

Answer 47

look it up yourself, then memorize it. I don't want to keep telling you the same equations over and over again.

write it down if you need to.

Answer 48

ok but can you tell me one moer time please ? :)

Answer 49

no.

Answer 50

look it up on the internet.

Answer 51

just type in "area of triangle equation" into google.

Answer 52

26?

Answer 53

no.

Answer 54

http://www.mathsisfun.com/area.html

I gave you the base and height. now find the area.

Answer 55

15?

Answer 56

good. now lets keep going.

Answer 57

ok