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nirvana33 [79]
4 years ago
7

You make a necklace with blue, purple, and green beads in a ratio of 1:1:2. Total of 168 beads. How many green beads are there?

Mathematics
2 answers:
Varvara68 [4.7K]4 years ago
8 0
If they are in the ratio of 1:1:2 then you have x blue, x purple and 2x green.

x + x + 2x = 168
4x = 168
x = 168 / 4
x = 42

So both blue and purple are 42 and green is 84
Check
42 + 42 + 84 = 168 which checks. 


ANTONII [103]4 years ago
7 0
Blue= 1/4
purple= 1/4
green 1/2
168/4 =42
blue= 42 beads. purple= 42 beads. green= 84 beads
there is a total of 84 green beads.
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aksik [14]

The answer should be A. In order to solve these half-life problems, I encourage you to find an algebra calculator online, and plug in these numbers. The remaining grams goes in front, so 3.


The entire equation should look something like 3 = 15(1/2)^t/4.95


The 4.95 represents how long it takes before the sample halves, t is your answer, 1/2 represents the value halving every 4.95 hours, 15 is the initial sample size, and 3 is the end result that remains.


The overall answer should be about 11.5 hours, as per an algebra calculator.

Hope this helps solve any other similar problems

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3 years ago
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S_A_V [24]

Answer:

15%

Step-by-step explanation:

900/6000

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7 0
2 years ago
What number is 90% of 350?
tatyana61 [14]

Answer:

315

Step-by-step explanation:

10% of 350 is 35 so 35 times 9 would equal <u><em>315</em></u>

7 0
3 years ago
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Evgesh-ka [11]

Answer: In the exact order up to down: 80, 74, 110, 96, 80

Step-by-step explanation:

Do the equation

360=(x-6)+(x+30)+1.2x+x

we can simplify by doing

360=(x-6)+(x+30)+2.2x

=360=x-6+x+30+2.2x

=360=4.2x+24

=336=4.2x

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x=80

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