Carli has 90 apps on her phone. braylen has half the amount of apps as theiss. if carli has three times the amount of apps as theiss, how many apps does braylen have? let b represent the number of braylen’s apps and t represent the number of theiss’s apps.

use tape diagrams to solve the problem.

15 apps

Step-by-step explanation:

Carli has 90 apps on her phone

carli=90

Carli has three times the amount of apps as Theiss

t=90/3=30

Braylen has half the amount of apps as Theiss.

b=t/2=30/2=15

right

step-by-step explanation:

- "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."