3. Jerimiah can type
300 words in 5 of
an hour. How
many words can
2.
he type in šof an
hour?
10
NS BYMS. MAC 2018

60 words/hour

300 w 5 h

x w 1 h

x = 300×1/5

= 300 : 5

= 60 words/hour

a. -0.3 > -0.33

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have