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dalvyx [7]
3 years ago
13

Alfonse and Melinda are taking a drive in a certain country. They know that a speed of 100 kilometers per hour is approximately

equal to 62 miles per hour. They are now driving on a road that has a speed limit of 105 kilometers per hour. How many miles per hour is the speed​ limit?
Mathematics
1 answer:
Alborosie3 years ago
5 0

Answer:

65.1 miles per hour

Step-by-step explanation:

According to the question 100 Km/hour = 63 miles/hour

It means in one hour 100 Km is traveled which is also equal to 62 miles.

hence 100 Km = 62 miles

dividing both sides by 100 we have

100/100 Km = 62/100 miles

Hence we can say that

1 Km = 0.62 miles

_________________________________________________

Multiplying both side by 105  we have

1 Km * 105 = 0.62 miles * 105

105 Km = 65.1 miles

Thus, 105 Km/hour is same as 65.1 miles per hour.

As 105 kilometres per hour is the speed limit in terms of yards/hour

speed limit will be  65.1 miles per hour.

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The amount of time (in hours) that Sam studied for an exam on each of the last five days is given below. 1.7 7.7 8.3 1.6 5.1 Fin
____ [38]

Answer:

The mean is 4.88 hours / day

Step-by-step explanation:

To calculate the mean we just add the values and divide by the number of items (in this case we add the hours and divide by the number of days)

so the equation would be

\frac{1.7+7.7+8.3+1.6+5.1}{5}=4.88

5 0
3 years ago
What mixed number is 3/8 of 100
shusha [124]
3/8 0f 100
100 / 8 = 12.5
Now, let's multiply this by 3 to be able to get the value
=> 12.5 * 3 = 37.5 is the value of 3/8 of 100.
This is a mixed number because its a combination of whole and decimal numbers.
4 0
3 years ago
Problem<br> 1<br> + 10x + 13 = 4
lutik1710 [3]

Answer:

x = -1

Step-by-step explanation:

Equation: 1+10x+13=4

Step 1: Balance both parts of the equation.

1+10x+13=4

(10x)+(1+13)=4

10x+14=4

10x+14=4

Step 2: Reduce 14 from both parts of the equation.

10x+14-14=4-14

10x= -10

Step 3: Split both sides by 10, because \mathrn {10x = -10}.

\frac{10x}{10} = \frac{-10}{10}

10 / -10 = -1

Therefore, x = -1.

6 0
3 years ago
If you add one-third of a number to the number itself, you get 16.what is the number?
GuDViN [60]
The answer to this is 12.


One third of 12 is 4.

12+4=16

Comment if you have ANY questions!

Hope this helps!
7 0
3 years ago
Read 2 more answers
A bakery has d dozen eggs in one refrigerator and 3 fewer dozen eggs in another refrigerator. Which expressions correctly show h
san4es73 [151]

Answer:  2 d - 3

Step-by-step explanation:

Here, the number of dozen eggs in one refrigerator = d

According to the question,

There are 3 fewer dozen eggs in another refrigerator.

⇒ The number of eggs in another refrigerator = d - 3

Thus, the total dozen of eggs in both refrigerator = the number of dozen eggs in first refrigerator + the number of dozen eggs in second refrigerator

= d + d - 3

= 2 d - 3

Which is the required expression.

3 0
3 years ago
Read 2 more answers
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