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Liula [17]
3 years ago
11

If the sum of a number and seven is doubled, the result is one less than the number. find the number

Mathematics
1 answer:
lawyer [7]3 years ago
7 0
(n + 7)2 = n - 1
2n +14 = n - 1
2n - n +14 = n - n - 1
n + 14 -14 = -1 - 14
n = -15
(-15 + 7)2 = -15 - 1
(-8)2 = -16
-16 = -16
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I will give multiple brainlist to people who help me with these slides!
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Answer:

A)6

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Step-by-step explanation:

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4 0
3 years ago
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The art club held a car wash on Saturday and Sunday. They washed a total of 50 cars. If they washed 30% of the cars on Sunday, h
o-na [289]

Answer:

If I did my math correctly, They washed 15 cars on Sunday.

Step-by-step explanation:

50 cars = 100%

Therefore 1 car would be 2% because 50 is half of 100.

So because 30% would be 2 times the amount of cars, we divide 30 by 2, giving us 30% = <u>15 cars on Sunday</u>

With this information, we can take away 15 from 50 giving us 35 cars which is equal to 70% on Saturday

Here is some extra data:

10% = 5 cars

20% = 10 cars

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6 0
2 years ago
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The food contain high iron food as the daily value (DV) of the iron is 45% and most of the nutrient claimed that food contain low sodium but contain good source of the fiber. The food is high in the amount of the nutrient with 20% daily value.

The daily value actually recommend the minimum amount of the particular nutrient which everyone should consume in daily life.

 

3 0
3 years ago
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Answer:

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Step-by-step explanation:

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4 0
3 years ago
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trasher [3.6K]

Answer:

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Step-by-step explanation:

Multiply the scale factor by the wall given.

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3 years ago
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