Answer:
D
Step-by-step explanation:
The problem with D is that 7 + 11 = 18. The rule is any two sides must exceed the third. D gives the shorter + the middle length = the longest length.
That can't work. All the others are fine.
(Not my own work.)
8 = 2 x 2 x 2
<span>30 = ...........2 x 3 x 5 </span>
<span>75 = ................3 x 5 x 5 </span>
<span>-------------------------------------- </span>
<span>....= 2 x 2 x 2 x 3 x 5 x 5 </span>
<span>....= 600</span>
Then I’ll teach u how to do distributive property
You can first set up a ratio to see how many TOTAL computers are needed for a r to 12 ratio.
(5/12) = (x/924) Now cross multiply to solve. 12x = 5(924) 12x = 4620
Divide both sides by 12. x = 385
There are a total of 385 computers needed for the school to have a 5:12 ratio.
Since the school already has 125 computers subtract 385-125 = 260. They need to purchase 260 more computers.