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lord [1]
2 years ago
5

​What is the best estimate for this sum?

Mathematics
2 answers:
Varvara68 [4.7K]2 years ago
7 0
The best estimate for this sum is 1/2

This is because because if we make the expression into a decimal it would be 0.53571428.. and many other numbers. If you make 1/4 into a decimal it will be 0.25 which is not close to the other number. Where-as if we made 1/2 into a decimal it would be 0.5 which would be the closest. Hope this helps
Pavlova-9 [17]2 years ago
3 0

Answer:

The sum is close to 1/2

Step-by-step explanation:

1/4 = 7/28
2/7 = 8/28
7/28 + 8/28 = 15/28

14/28 = 1/2 and 15/28 is close to 14/28

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What adds to be 10 and multiplies to be 24
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Let x and y be the 2 numbers

x + y = 10
x*y = 24
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4 years ago
Write a number that is greater than 8.604 but less than 8.643
AVprozaik [17]
An example of a number you're looking for is 8.625
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Can you pls slove the 12 question ​
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7 0
3 years ago
Please find h: 44= 4(8+h)
Illusion [34]
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6 0
4 years ago
A man took a trip, traveling by train. He looked out the window during the first 1/3 of the trip. He then slept for 1/5 of the r
kifflom [539]

Answer: 528 km

Step-by-step explanation:

Let x be the total distance traveled by train.

Then, the total time he spent on looking outside the window and in sleeping = \frac{x}{3}+\frac{x}{5}=\frac{8x}{15}

Then the remaining distance =x-\frac{8x}{15}=\frac{7x}{15}

The time he spent on reading = \frac{1}{2}\times(\frac{7x}{15})=\frac{7x}{30}

Since, the train traveled 17.6 km more while he read than while he slept.

Then,

\frac{7x}{30}-\frac{x}{5}=17.6\\\Rightarrow\ \frac{7x-6x}{30}=17.6\\\Rightarrow\ \frac{x}{30}=17.6\\\Rightarrow\ x=30\times17.6\\\Rightarrow\ x=528

Hence, the train traveled 528 km.

7 0
3 years ago
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