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Maurinko [17]
3 years ago
8

ForFind The average speed when a car travels130 miles in 2 12 hours? ​

Mathematics
1 answer:
Schach [20]3 years ago
3 0

Answer:

Average speed=52 miles per hour

Step-by-step explanation:

The expression for calculating the average speed is as follows;

S=D/T

where;

S=average speed

D=distance traveled

T=time taken

In our case;

S=unknown

D=130 miles

T=2 1/2 hours=2.5 hours

replacing;

Average speed=130/2.5=52 miles per hour

Average speed=52 miles per hour

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The mean age of 11 women in an office is 31 years old.
BlackZzzverrR [31]

Answer: 30.2

Explanation:

The mean is calculated by taking the sum of the values and dividing by the count.

For instance, for the 6 women, with the mean being 31, we can see that the ages summed to 186:

186

6

=

31

And we can do the same for the men:

116

4

=

29

And now we can combine the sum and count of the men and women to find the mean for the office:

186

+

116

10

=

302

10

=

30.2

Step-by-step explanation:

3 0
2 years ago
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mestny [16]
Cos = adjacent / hypotenuse

cos 25° = 4 / AB

cos 25° • AB = 4 / AB • AB

AB cos 25° ÷ cos 25° = 4 ÷ cos 25°

AB = 4/cos 25°

AB = 4.41 (nearest hundredth)
8 0
3 years ago
X is all of the following except.<br> a constant<br> a varlable<br> an expression
DanielleElmas [232]

Answer:

a constant

Step-by-step explanation:

6 0
3 years ago
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At a bike shop, Kirby is buying a new bike that costs
mart [117]

Answer:

tax: $18.9

total cost: $333.9

Step-by-step explanation:

$315 × 0.06 = 18.9

18.9 + 315 = 333.9

btw you can also do "315 × 1.06" to get the total cost without having to manually add the tax

3 0
3 years ago
Is 12.54 greater than 12.539?
Damm [24]

Answer:

yes

Step-by-step explanation:

12.54

>

12.53

reason why is because of the 4>5

8 0
3 years ago
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