Answer:
A) 2(9x - 2)
Step-by-step explanation:
The greatest common factor of 18x and -4 is 2.
B is wrong because 18 is not the greatest common factor of both, since 4 cannot be divided by 18 and result in a whole number.
C is wrong because 18x cannot be divided by 4 to produce a whole number.
D is wrong because it restates the problem in a different way, therefore not factoring it completely. 1 is a common factor of both, but not the greatest.
Answer:
504 ways
Step-by-step explanation:
We know that since Sonji wants the last digit to be 7 and that numbers don't repeat, there are only 9 possibilities for the first digit, 8 possibilities for the second digit, 7 possibilities for the third digit, and 1 possibility for the fourth digit (which is 7).
Using the Fundamental Counting Principle, there are 9*8*7*1 = 504 ways for the remaining digits to be chosen.
Wahab has to donate at least 50 books to reach his goal
<h3><u>Solution:</u></h3>
Given that, Wahab wants to donate at least $6000 in books and pairs of shoes.
Let "B' represent the number of books
Let "S" represent the number of pairs of shoes that Wahab must donate to achieve his goal.
20B+50S ≥ 6000 ⇒ this is the inequality for total donation.
Wahab donates 100 pairs of shoes.
Now, as he donated 100 pairs of shoes, S = 100, so substitute this in inequality.
20B + 50(100) ≥ 6000
20B + 5000 ≥ 6000
20B ≥ 6000 – 5000
20B ≥ 1000
B ≥ 50
Hence, wahab has to donate at least 50 books to reach his goal.
The answer for #5 is A, B, and D
Yes the correct answer is D. Hope this helps :)
