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Rom4ik [11]
2 years ago
12

Fill in the blanks with the answer to each question based on information provided.Two toy robots are having a race. Robot A can

go 14 meter in 15 seconds. Robot B can go 1 meter in 50 seconds.1) If Robot A continues at that same speed, how long will it take to go 1 meter? Remember units! __________2) How long for Robot A to go 4 meters at that speed? Remember units! _________
Mathematics
1 answer:
GalinKa [24]2 years ago
5 0

Answer:

  1. 1 1/14 seconds
  2. 4 2/7 seconds

Step-by-step explanation:

We are being asked for times, so we can express the rate in terms of seconds per meter.

  (15 seconds)/(14 meters) = (15/14) seconds per meter = 1 1/14 seconds/meter

__

1) It will take Robot A 1 1/14 seconds to go 1 meter.

2) it will take Robot A 4 2/7 seconds to go 4 meters. (4 times as long)

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A rectangle has a length of (x+10) centimeters and a width of x centimeters. If the perimeter is 32 centimeters, what is the len
I am Lyosha [343]

Given:

Length of rectangle = (x+10) cm

Width of the rectangle = x cm

Perimeter = 32 cm

To find:

The length of the rectangle.

Solution:

We know that,

Perimeter=2(l+w)

Where, l is length and w is width.

Substituting the values, we get

32=2((x+10)+x)

32=2(2x+10)

32=4x+20

Subtract 20 from both sides.

32-20=4x

12=4x

Divide both sides by

3=x

So, the length is

3+10=13

Therefore, the length of the rectangle is 13 cm.

7 0
3 years ago
The weekly salaries of sociologists in the United States are normally distributed and have a known population standard deviation
netineya [11]

THIS IS THE COMPLETE QUESTION BELOW;

The weekly salaries of sociologists in the United States are normally distributed and have a known population standard deviation of 425 dollars and an unknown population mean. A random sample of 22 sociologists is taken and gives a sample mean of 1520 dollars.

Find the margin of error for the confidence interval for the population mean with a 98% confidence level.

z0.10 z0.05 z0.025 z0.01 z0.005

1.282 1.645 1.960 2.326 2.576

You may use a calculator or the common z values above. Round the final answer to two decimal places.

Answer

Margin error =210.8

Given:

standard deviation of 425

sample mean x=1520 dollars.

random sample n= 22

From the question We need to to calculate the margin of error for the confidence interval for the population mean .

CHECK THE ATTACHMENT FOR DETAILED EXPLANATION

4 0
3 years ago
Answer the question.
san4es73 [151]
Alright so
5^4m = 5^12
cancel the bases
4m=12
divide by 4
m=3
6 0
3 years ago
Ms Angelina made 2 pans of lasagna and cut each pan into twelfths her family ate 1 1/2 pans of lasagna for dinner how many pans
Furkat [3]

Answer:

1/2 of the lasagna was left or 6/12

Step-by-step explanation:

Her family ate 1 whole pan of the first lasagna and 1/2 of the second pan. If they ate 1/2 from the second pan then there will be 1/2 left or in this case 6/12 because she cut it in 12 pieces.

Hope this helped :)

8 0
3 years ago
Expresión factorizada <br> 12abxyz - 3xyz - 4 ab + 1
BARSIC [14]

Answer:

12+3-4+1=12

Step-by-step explanation:

5 0
3 years ago
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