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Leokris [45]
3 years ago
11

Darcy pays $31 for five books Kenneth pays $49.25 for 8 books what are they each paper book are they equivalent ratios

Mathematics
1 answer:
Verizon [17]3 years ago
4 0
Darcy’s books were $6.20 each and Kenneth’s were approximately $6.16 rounded to the nearest hundredth. They are not equivalent ratios
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6n-3>-18 please show work
maxonik [38]
First off, add 3 to both sides of the equation.
6n - 3 + 3 > -18 + 3
Then, your equation should look like this: 6n > -15
Next, divide both sides by 6.
6n/6 > -15/6
Your answer is n > -5/2
6 0
3 years ago
Read 2 more answers
What is the slope of the line that passes through the points (8, -4) and (2,6)
Elena-2011 [213]

Answer:

C -5/3

Step-by-step explanation:

y2-y1/x2-x1

6- -4/ 2-8

-5/3

7 0
3 years ago
Please help me out plz
9966 [12]
Point slope formula is y= mx+b. To find the slope, or m, you need to find the "rise over run". rise = y coordinates, run = x coordinates. And the slope equation is y1-y2/x1-x2. So let's say the first point is (x1,y1) and the second is (x2,y2). that would be 35-(-31)/5-(-6)= 66/11 or 6/1 aka up six, across one. That is your slope. So far you have y=6x+b, next plug (5,35) into that equation and solve for b (aka the y intercept). So: 35=6(5)+b. 35-30=b, b=5. So your final equation is y=6x+5.
8 0
3 years ago
The level of the tide in a harbor changed from 9 1/4 ft to 4 1/2 ft above sea level over a period of 3 1/4 hr
kumpel [21]

Answer:

The answer is "\bold{- \frac{19}{13} \ / hour}"

Step-by-step explanation:

Please find the complete question in the attached file.

Calculating the difference of 9 \frac{1}{4}\ and \ 4 \frac{1}{2}  dividing the value by 3 \frac{1}{4}

\to 4 \frac{1}{2} - 9 \frac{1}{4}\\\\ \to  \frac{9}{2} - \frac{37}{4}\\\\  \to  \frac{18-37}{4} \\\\ \to -\frac{19}{4}\\\\\to -\frac{19}{4} \div \frac{13}{4}= -\frac{19}{4} \times \frac{4}{13} = -\frac{19}{13}\\

3 0
3 years ago
A group of students are randomly placed in either a traditional AP Stat class or an online-only AP Stat class. Both classes take
BaLLatris [955]

Answer:

Mean or Expected Value:

μ

=

∑

x

i

n

X

x

P

(

x

)

Standard Deviation:

σ

=

√

∑

x

i

n

X

(

x

−

μ

)

2

P

(

x

)

Step-by-step explanation:

8 0
3 years ago
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