Use this picture for all Make sure 1-4 is correctand the answer to 5
1 answer:
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<u><em>Answer:</em></u>
70
<u><em>Explanation:</em></u>
Assume that the number we are looking for is x
one tenth is interpreted into
Now, we know that one tenth of the number is 7, this means that:
* x = 7
Solve for x by multiplying both sides of the equation by 10, we get:
* x * 10 = 7 * 10
x = 70
Hope this helps :)
<u>We know that (a + b)(a - b) = a² - b²:</u>
Answer: LCD = ( x + 1) (x - 1)