-2 sqrt (20) -sqrt (125)
-2 sqrt (4 * 5) - sqrt (5 * 25)
-2sqrt (4) * sqrt (5) - sqrt (5) sqt (25)
-2 * 2 * sqrt (5) - 5sqrt (5)
-4sqrt (5) -5sqrt (5)
-9sqrt (5)
We can set up a proportion since we know the ratio between the # of purple marbles and the # of green marbles.
A ratio is a way to compare two different values: for every 8 purple marbles there are 5 green marbles
<h2>
</h2><h2 /><h2>when we cross multiply, we get 5p = 240 </h2><h2>we divide both sides by 5 to isolate the variable </h2><h2 /><h3><u>There are 48 purple marbles </u></h3>
Answer:
10 maybe
Step-by-step explanation:
Answer:
95
Step-by-step explanation:
n is 360-121-144 since all the sums of the exterior angles add up to 360 and so 360-121-144=95 so our answer is 95
Answer:
13 + 14 + 15
Step-by-step explanation:
n + (n + 1) + (n +2) =42
n + n + n + 1 + 2 = 42
3n + 3 = 42
(subtract 3 from both sides)
3n = 39
(divide both sides by 3)
n = 13
(solve)
n + (n + 1) + (n +2) =42
13 + (13 + 1) + (13 + 2) = 42
13 + (14) + (15) = 42
13, 14, 15
(Hope this helps, have a nice day!)