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inn [45]
3 years ago
6

DO NOT READ THE TEMPATURE IN YOUR CITY JUST WRITE A LIST A TEMPATURES THAT MAKE SENSE.

Mathematics
1 answer:
neonofarm [45]3 years ago
3 0

Answer:

DO NOT READ THE TEMPATURE IN YOUR CITY JUST WRITE A LIST A TEMPATURES THAT MAKE SENSE.

Part 1: How's the weather?

A. Investigate the weather forecast in your city.

Record the high and low temperatures that are forecast for the next 7 days in the table below. In the columns titled, Difference," record the change in temperature from the day before. To do this, subtract the previous temperature from the current temperature Be sure to use positive and negative numbers as needed! For example, if yesterday’s temperature was 70 and today’s temperature was 65, the difference is 65 – 70 = -5.

Date High Temperature Subtract previous temperature from current temperature Difference Low Temperature Subtract previous temperature from current temperature Difference

1 -N/A- -N/A- -N/A- -N/A-

2

3

4

5

6

7

Note: The columns for Day One's subtraction and difference cannot be filled in. As this is the first data point, there is no previous temperature to subtract.

B. Write a mathematical expression using the information from your table to answer the following questions:

1. What is the mean change in the forecasted high temperatures over the next 7 days? Remember, this can be found by averaging the values in the Difference column for the high temperatures. Show your work and steps. If your answer is not an integer, explain what two integers your answer is between.

2. What is the mean change in the forecasted low temperatures over the next 7 days? Remember, this can be found by averaging the values in the Difference column for the low temperatures. If your answer is not an integer, explain what two integers your

Step-by-step explanation:

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Y= - x+2 Y=3x-4<br> Estimate the solution to the system of equations
IrinaVladis [17]

Answer:

x=\frac{3}{2}\\ y=\frac{1}{2}

Step-by-step explanation:

y=-x+2\\y=3x-4

Let's solve one of them for x.

y=3x-4

Add 4

y+4=3x

Divide by 3.

x=\frac{y+4}{3}

Now, plug the value of y in the formula, or you can plug the value of x in the other equation. I'll take this one.

x=\frac{y+4}{3}

x=\frac{(-x+2)+4}{3}

x=\frac{-x+2+4}{3}

x=\frac{-x+6}{3}

Multiply by 3 to get rid of the denominator.

3x=-x+6

add x

3x+x=6

Combine like terms;

4x=6

Divide by 4.

x=\frac{6}{4}

Simplify.

x=\frac{3}{2}

Now that you found the value of x, replace it in any of the equations to find y.

y=-x+2\\y=-(\frac{3}{2})+2\\ y=-\frac{3}{2}+2

y=\frac{-3+2*2}{2} \\y=\frac{-3+4}{2} \\y=\frac{1}{2}

Proof:

y=3x-4\\\frac{1}{2}=3(\frac{3}{2})-4\\\frac{1}{2}=(\frac{9}{2})-4

\frac{1}{2}=\frac{9-4*2}{2}

\frac{1}{2}=\frac{9-8}{2}

\frac{1}{2}=\frac{1}{2}

8 0
4 years ago
The circle with O has a circumference of 8pi inches. The central angle is 60 degrees. what is the length of the minor arc BSA
Rashid [163]
4.19 inches

use the formula: central angle/360°=arc length/8 pi

60/360 = 0.1667
0.1667 = length of minor arc /8 pi
multiply 8pi x 0.1667 to find length of arc
the minor arc is about 4.19inches
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erastovalidia [21]
A,c,d is what I got but make sure to double check
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3 years ago
at franklin middle school,3/8 of the students take a bus to school, 3/5 walk, and the rest bike. There are 20 students who bike
nordsb [41]

Answer:

There are 800 kids in the school.

Step-by-step explanation:

Let x be the answer (how many kids are in the school).

Let's add them together. 3/5+3/8 = how many people do not bike to school, which is 0.975 of everyone. 1-0.975 = 0.025, which means 0.025x = 20. 0.025x = 1/40, so 1/40x = 20. Multiplying, we have x =800.

6 0
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Answer:

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Step-by-step explanation:

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