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butalik [34]
2 years ago
15

Please Help Me!!!!!! I have a big test tomorrow!!!!!!!! I will give 30 points!!!!!!!!! The expression represents the number of m

iles Celeste rode her bike, and represents the number of miles that Kimiko rode her bike, in hours.
a) Write an expression to show who many more miles Kimiko rode than Celeste.

Answer:

b) If they each rode for 2 hours, how many more miles did Kimiko ride?

Answer:
miles
Mathematics
1 answer:
il63 [147K]2 years ago
4 0

Answer:

For this expression I guessed I would use subtraction because when you subtract Kimiko's miles to Celeste's miles you could see how much faster Kimiko was than Celeste.

Step-by-step explanation:

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Solve the system by substitution.<br> 10x + 5y = -50<br> y = -x
Pie

Answer:

(1,-12)

Step-by-step explanation:

-10+5y=-50

5y=-60

y=-12

10x-60=-50

10x=10

x=1

8 0
3 years ago
Answer my question 4 u could get 10 points
Greeley [361]

Answer:

30

Step-by-step explanation:

Split the trapezoid into parts, a rectangle and a triangle. The dimensions of the rectangle will be 3 and 8, so 3*8=24. 24 is part of the answer. The dimensions of the triangle are 4 and 3, and 4*3/2 is 6, so 6 is the other part of the answer. 24 + 6 = 30.

6 0
2 years ago
What is the value of y
pashok25 [27]

Answer:

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3 0
3 years ago
The table shows the time a patient spends at the dentist and the amount of the bill.
erica [24]

<u>Answer-</u>

Correlation coefficient for the data in the table was found to be 0.93.

<u>Solution-</u>

Taking the independent variable or input variable as, the time a patient spends at the dentist and the dependent variable or output variable as the amount of the bill.

We know that,

r=\frac{n(\sum xy)-\sum x \sum y}{\sqrt{[n\sum x^{2} -({\sum x})^{2}]\times [n\sum y^{2} -({\sum y})^{2}]}}


Calculating the values from the table, then putting it in the formula

r=\frac{4 \times 3130.9 \ - \ 6.45 \times 1473}{\sqrt{[4\times 12.3725 \ - \ 6.45^{2}][4 \times 877475 \ - \ 1473^2]}}

\Rightarrow r=0.929720561 \approx 0.93

∴  Correlation coefficient for the data is 0.93.


3 0
3 years ago
Read 2 more answers
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mash [69]

Answer:

53

Step-by-step explanation:

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3 years ago
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