subject
Mathematics, 25.03.2020 05:30 geraldsmith2008

8th Grade Functions: Battery Life
RULE
they planned to
Sam wants to take his tablet and phone on a car trip. An hour before they planne
leave, he realized that he forgot to charge the batteries last night. At that point
plugged in both devices so they can charge as long as possible before they left.
Sam knows that his tablet has 40% of its battery life left and that the battery charge
by an additional 12 percentage points every 15 minutes.
His phone is new, so Sam doesn't know how fast it is charging but he recorded the
battery charge for the first 30 minutes after he plugged it in. (see the table below)
Time charging (minutes)
10
20
30
Phone battery charge (%)
20
/
32
44
56
a. If Sam's family leaves as planned, what percent of the battery will be charged for
each of the two devices when they leave?!
b.
How much time would Sam need to charge the battery 100% on both devices?


8th Grade Functions: Battery Life RULE they planned to Sam wants to take his tablet and phone on a c

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 17:00
Ajar of gumballs contains 4 reds, 2 greens, and 6 blues. what is the probability of getting two blues in a row without replacement?
Answers: 1
question
Mathematics, 21.06.2019 19:00
Could someone with number 1 and 2
Answers: 1
question
Mathematics, 21.06.2019 23:00
What is the sum of these mixed numbers 4 2/3+ 3 1/9
Answers: 2
question
Mathematics, 22.06.2019 00:20
Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.
Answers: 2
You know the right answer?
8th Grade Functions: Battery Life
RULE
they planned to
Sam wants to take his table...
Questions
question
Mathematics, 11.06.2021 03:40
question
Mathematics, 11.06.2021 03:40
question
Mathematics, 11.06.2021 03:40
question
English, 11.06.2021 03:40
question
Mathematics, 11.06.2021 03:40
question
Mathematics, 11.06.2021 03:40
question
Social Studies, 11.06.2021 03:40