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Maslowich
3 years ago
7

A laptop battery has 80% power after 1 hour of use and 20% after 4 hours of use . What is the slope ?

Mathematics
1 answer:
Kruka [31]3 years ago
8 0

Answer: 5/1

Step-by-step explanation:

After 5 hours, it would be at zero.  And 100 divided by 4, is 20.   Meaning that the slope is 5/1, or 5.

You might be interested in
a line is perpendicular to y - 5 = -1/4(x + 8) and goes through the point (-1,2). What is the lines y-intercept?
lisabon 2012 [21]

Answer:

y = 4x + 6

Step-by-step explanation:

Turn the equation we are given into slope-intercept form.

y - 5 = -1/4(x + 8)

y - 5 = -1/4x - 2

y = -1/4x + 3

The slope of a perpendicular line is the opposite reciprocal of the original line.

-1/4 -> 4/1 -> 4

Find the new y-intercept using the point given.

y = 4x + b

2 = 4(-1) + b

2 = -4 + b

6 = b

Fill in everything we solved for.

y = 4x + 6

Best of Luck!

8 0
3 years ago
- 7(2-1) = 28<br> The solution is?
Aneli [31]

Answer:

Is there a x somewhere or is that litteraly how the equation is?

If so, -7 multiplied by 2 is -14,

-1 times -7 is 7,

add it together and you get

-7=28,

you could add 7 to both sides or subtract 28 from both sides and you'll get either 0=35 or -35=0

which would make the solution false since both sides are not the same

6 0
3 years ago
Find 310% of 150. a number blank
Ede4ka [16]

Answer:

465

Step-by-step explanation:

Of means multiply

310% * 150

Change to decimal form

3.10 * 150

465

7 0
3 years ago
Read 2 more answers
Rewrite the following question in Standard form <br> Y=7/3x+8/5
BartSMP [9]
15y = 7x + 8
15y - 7x - 8 = 0

i am a mathematics teacher. if anything to ask please pm me
3 0
3 years ago
HELPP ME, in the equation y= 4x + 7, (x is the number of items and y is the total cost), What is the unit rate ? include units i
Neporo4naja [7]
6 because I had the same question
4 0
3 years ago
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