Question

can someone please explain this ​

Answer 1

Answer:

This is very easy.

let me explain.

Step-by-step explanation:

X divided by Y means you should write it as

=X/Y

powers means

For ex:a*a*a:a³

means you should count how many letters are there.

Answer 2

Answer:

I can-

so yea-

see-

Let's take the first example and do accordingly:

so suppose we say-

3 more than a number x, so here the number is unknown so we can take it as x and because it's said 3 more than that number so the answer becomes x+3

Now let's take a look at the second example:

let's take suppose- 7 times a number x is y less than a number z.

so here too the numbers are unknown so we can take the first unknown number as x second one as y and third as z. now according to the question, 7 times a number. so 7 times a number means 7 multiplied by that number, i.e, 7x. next it's said 7times a number is y less than z

so here is means equals to.

Thus 7x = z-y

The third eg shows us that instead of repeating the same number again and again we can just write the number to the power how many times it's repeated. For eg- instead of writing (a×a×a) we can simply write a³.

The fourth eg shows almost the same thing. For eg. instead of writing (a×a×a×b×b) we can simply write a³b².

Step-by-step explanation:

Hope this helps you ◉‿◉

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