Question

The formula below gives A, the area of a parallelogram with base b and height h.

A=bh

If a parallelogram has an area of 60 square meters, which equation gives the height of the parallelogram as a function of its base?

A) h=b/60
B)h=60b
C)h=60-b
D)h=60/b

Answer 1

Start with A = bh and replace A with 60. We can do this because the area is 60 sq meters

So we go from

A = bh

to

60 = bh

Answer 2

Now how do we isolate h?

Answer 3

how?

Answer 4

We have b times h on the right side, correct?

Answer 5

yes

Answer 6

We want to undo this to move that b over and isolate h. So what do we do to undo multiplication?

Answer 7

divide?

Answer 8

yes

Answer 9

so we divide both sides by b to isolate h

to go from

60 = bh

to

60/b = h

Answer 10

The last step is to flip the equation to get


h = 60/b

Answer 11

so its b?

Answer 12

what do you mean, it's h = 60/b

Answer 13

or did you mean choice B?

Answer 14

if you meant that, then no, it's not choice B

Answer 15

i mean d

Answer 16

yeah you got it

Answer 17

thank you

Answer 18

yw