The steps below show the incomplete solution to find the value of x for the equation 6x − 2x − 5 = −6 + 21: step 1: 6x − 2x − 5 = −6 + 21 step 2: 6x − 2x − 5 = 15 step 3: 4x − 5 = 15 which of these is most likely the next step? 4x = 10 4x = 3 4x = 45 4x = 20

  4x = 20

Step-by-step explanation:

5 is subtracted from the variable term. We want to undo that subtraction by adding 5 to both sides of the equation. The result is ...

  4x -5 +5 = 15 +5

  4x = 20

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.

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