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anyanavicka [17]
3 years ago
6

Josh created a pattteren .20 tiles were blue . For the rest of the patteten he used equal numbers of red and white tiles . 40 pe

rcent
of the patteren was made with blue tiles . How many red tiles were used to make the patteren ?​
Mathematics
1 answer:
uranmaximum [27]3 years ago
7 0
Can you please mark me brainlist
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Can someone help me with this
CaHeK987 [17]

Answer:

19 m

Step-by-step explanation:

This is Geometric progression with

\left \{ {{u_1=1,\: u_2 =2} \atop {u_n=2^{n-1}u_1} \right.

Then the fomular of sum is

S=u_1\frac{2^n-1}{2-1} =1\times(2^n-1)=2^n-1\\To\: save\: 1 \:million\: then \; our \:sum \: will \: be\: 1000000\\Hence,\\2^n-1=1000000\\2^n=1000001\\n=log_{2}{1000001}\approx19,9\\Thus, it\:would \;be \:19 \:months \:before\: we\: saved \:1000000 \:pounds

5 0
3 years ago
Lisa made $201.50 selling 13 of her old video games.
abruzzese [7]

Answer:

Step-by-step explanation:

201.50/13 =p                           201.50/13=15.50 c /u

3 0
3 years ago
Is this correct?Check image
Zinaida [17]
Yes it is correct!:)
3 0
3 years ago
Read 2 more answers
Can someone pls pls pls pls pls pls answer these question
choli [55]
The answer is x=89/9
4 0
3 years ago
Could someone help me solve this?
Andrew [12]
G has 2 local minimums, you can tell because there are 2 dips in the line before it goes of to infinity.
Both questions have the same answer so the answer to both would be
Local Min: (-2,-3), (3,0)
5 0
3 years ago
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