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Margaret [11]
3 years ago
8

Blakes goes from averaging 8 hours of sleep for a school night to averaging 6.5 hours of sleep on the weekend. What is the perce

nt of change in the average hours of his sleep? (HOW DID YOU GET YOUR ANSWER PLEASE SHOW YOUR WORK. DO NOT BOTHER ANSWERING IF YOU DO NOT TELL ME HOW YOU GOT YOUR ANSWER!!)
A. 36
B. 70
C. 1/462
D. 6(4X+3Y-2)
E. 18.75
F. 23.36
G. 2.54
H. 36.3
I. 6(4X-3Y+2)
Mathematics
1 answer:
beks73 [17]3 years ago
7 0

Answer:

Step-by-step explanation:

So Blakes sleep 8 hours per night during the school day

8 hours/night...................................100%

6.5 hours/night...................................?

6.5*100/8=81.25

the change in percentage is 100-81.25=18.75%

the percentage change is 18.75

if it is easier for you, another method is:

8-6.5=1.5 subtract the original amount to the new amount

1.5/8=0.1875 divide by the original amount

0.1875*100=18.75 find the percentage

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Eric rented a truck for one day the base fee was 16.95 for additional charge of .76 cents for each mile driven eric had to pay 1
goldenfox [79]

Answer:

178 miles

Step-by-step explanation:

Let Eric has driven d miles.

As the rate of charge of driving the truck = 76 cents /mile

So, the charge of driving the truck for d miles = 76d cents= $0.76d

The base fee of the truck was $16.95.

Total money paid at the time of returning the truck = $152.23

So, 16.95+0.76d=152.23

0.76d= 152.23-16.95=135.28

d=135.28/0.76

d=178

Hence, he drives 178 miles.

8 0
2 years ago
What is the range of range of the relation shown in the table?
seropon [69]

-2Step-by-step explanation:

7 0
3 years ago
Which is an x-intercept of the continuous function in the table?(0, –6)(3, 0)(–6, 0)(0, 3)
Neporo4naja [7]

Answer:

B. (3,0)

Step-by-step explanation:

The x-intercept is the point where the graph of the function meets the x-axis.

At x-intercept, <u>y = 0 or f(x) = 0</u>

So look through the table and find where <u>f(x) = 0.</u>

From the table, <u>f(x) = 0 at x = 3.</u>

We write this as an ordered pair.

Therefore the x-intercept is <u>(3,0)</u>

The correct choice is <u>B</u>.

6 0
2 years ago
Please answer this simple question !!!
Vlada [557]
A rational number is a number that can be written in form a/b where a and b are integers and b is not eual to 0

simplify eacy
\sqrt{8}=2\sqrt{2}
\sqrt{16}=4
we get

\frac{2\sqrt{2}}{3}+4
\sqrt{2} is irrational
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4 0
3 years ago
Compare 2÷5 and 1÷8. write &lt; or &gt;.​
AnnZ [28]

[|] Answer [|]

\boxed{0.4 \ > \ 0.125}

[|] Explanation [|]

Solve The Division Problems First:

2 Divided By 5

= 0.4

1 Divided By 8

= 0.125

Compare; Which Is Larger:

                     V

0.125            0.4

0.4 > 0.125

If you were to graph these two numbers on a number line, you would find that 0.4 is closer to zero, making it the largest number of the two.

\boxed{[|] \ Eclipsed \ [|]}

4 0
3 years ago
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