Evaluate (15 - 4x) + 5 when x=3 Evaluate within
parentheses.

Evaluate exponents.

Multiply and divide from left to right.

Add and subtract from left to right.

Substitute the given value for the

Use the to simplify.

First, complete the
inside the
parentheses.

Next, complete the
inside the parentheses,

Last, complete the the addition

The value is

5.25 ounces

step-by-step explanation:

divided 3/4 and 6

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."