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2 years ago

Eleven subtracted from two times a number is -31.

Mathematics

1 answer:

erica [24]2 years ago

7 0

Answer:

x=-10

Step-by-step explanation:

$2x-11=-31\\$

Add 11 on both sides.

$2x-11=-31\\2x=-20\\2x/2x=-20/2\\x=-10$

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Elis [28]

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3 years ago

Jamie takes at random a counter from the bag and records the colour. Red : blue : green = 1:3:7 Jamie does this a number of time

Sonbull [250]

Answer: There are 249 times Jamie takes a counter from the bag.

Explanation:

Since we have given that

Ratio of colour of red to blue to green is 1:3:7.

Number of blue counters = 68

Let the total number of times Jamie does from the bag be x.

So, According to question,

$\frac{3}{11}\times x=68\\\\x=\frac{11}{3}\times 68\\\\x=249.33\\\\=249\ approx.$

Hence, there are 249 times Jamie takes a counter from the bag.

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3 years ago

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