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Delicious77 [7]
3 years ago
10

Please help me in question 9 and please explain it

Mathematics
2 answers:
stich3 [128]3 years ago
8 0
To solve this question, remember that as per what is given in the problem

X represents the number of hours the batter was used for

Y represents the percent of battery remaining.

The question is simply asking for the percentage of battery remaining after 11 hrs.

Simply plug in 11 for X and solve for y.






lesya692 [45]3 years ago
7 0
If the battery was used for 11 hours, then the value of x we use is 11
Subtitute x with 11 in the equation
y = 100 - 8.9x
y = 100 - 8.9(11)
y = 100 - 97.9
y = 2.1
The remaining power is 2.1%
the answer is option b
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3 years ago
Whats the difference -6-(11)
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-6 -11

(-6) + (-11) = -17

-17 is your answer

Hope this helps
8 0
3 years ago
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Find the slope of the line shown on the graph. Please help! :(
Anna [14]

Answer:

It's really easy just remember rise over run.

Step-by-step explanation:

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7 0
3 years ago
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10. The perimeter of the table shown is 16 feet. Write an equation in
Aliun [14]

Answer:

p = 2

q = 6

r = 16

x = 5 feet

Step-by-step explanation:

The perimeter of the rectangle is

P=2(\text{Width}+\text{Length})

In your case,

Width = 3 feet

Length = x feet

So, the perimeter is

P=2(3+x)\\ \\P=6+2x

Since the perimeter is 16 feet, we have

2x+6=16

Hence,

p = 2

q = 6

r = 16

Solve this equation for x:

2x+6-6=16-6\\ \\2x=10\\ \\x=\dfrac{10}{2}=5\ feet

4 0
3 years ago
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