<span>To solve these GCF and LCM problems, factor the numbers you're working with into primes:
3780 = 2*2*3*3*3*5*7
180 = 2*2*3*3*5
</span><span>We know that the LCM of the two numbers, call them A and B, = 3780 and that A = 180. The greatest common factor of 180 and B = 18 so B has factors 2*3*3 in common with 180 but no other factors in common with 180. So, B has no more 2's and no 5's
</span><span>Now, LCM(180,B) = 3780. So, A or B must have each of the factors of 3780. B needs another factor of 3 and a factor of 7 since LCM(A,B) needs for either A or B to have a factor of 2*2, which A has, and a factor of 3*3*3, which B will have with another factor of 3, and a factor of 7, which B will have.
So, B = 2*3*3*3*7 = 378.</span>
185% = 185/100
185/100 = 37/20
The simplest form fraction of 185% is 37/20.
Ryan walked faster. He ended up walking 2 1/10 km faster than Olivia.
Answer:
16 dollars.
Step-by-step explanation:
Given that selling price of a back pack after reduced by 30% is 11.20 dollars.
We have to find the original price of the back pack.
Let original price = 100
Reduced % = 30
Selling price = 70
70 dollars is equivalent to selling price of 11.20 $
100 dollars is equivalent to selling price of 100(11.2)/70 = 16 $
i.e. original price of back pack is 16 dollars.