It means <span>9 is not an element of T. hope it helped</span>
Umm... I think 1. Please mark me as brainliest
Well, the first thing we need to do is divide 10 by 4. These teo numbers are the number of pens, and cost of them. So,
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10 / 4 = 2.5
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Now we have to use the answer we got, 2.5 which is the cost of 1 pen, and multiply it by 7.
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2.5 x 7 = 17.5
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This means that 7 pens cost <span>£</span>17.5
Answer:
16 1/3 or 49/3
Step-by-step explanation:
9.8*10 is 98
98/6 is 16 1/3
Answer:
x=-2
Step-by-step explanation:
Replace n(x) in the first equation to 18. After you get 18=20-x. You subtract 20 from each side to get -x=2. Since there's still a negative sign on the left side, you divide both sides by negative 1. As a result you get x=-2.
