Explain how comparing 645 and 738 is different from comparing 645 and 649

1 answer:

5 0

When comparing these two different sets of numbers the major difference is the number of places that you need to compare. In the case of the first pair, you would have to include the ones, tens and hundreds place when comparing, whereas with the second pair you would only need to compare the ones place.

This can be seen by using subtraction. You'll note that subtracting the first set gives you a 2 digit number and involves the process of borrowing (when you do it by hand).

738 - 645 = 93

The second set will give you a one digit number and involves no borrowing.

649 - 645 = 4

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5 0

2 years ago

Tell whether the angles are adjacent or vertical. Then find the value of x.

krok68 [10]

Answer : The angles are vertical angles and the value of x is $25^o$

Step-by-step explanation :

Adjacent angles : It is defined as the two angles that have the common arm and common vertex.

Vertical angles : It is defined as the two lines intersect each other and form angles. The opposite angles are known as vertically opposite angles.

And we know that the vertically opposite angles are equal.

In the given image, the angles are vertical angles and vertically opposite angles are equal.

So,

$(4x-25)^o=75^o$