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3 years ago

The product of two numbers is 91. If one numbers is 7,the other number is

Mathematics

2 answers:

steposvetlana [31]3 years ago

6 0

Answer: 13

Step-by-step explanation: The product is what you get after multiplying two numbers, therefore your answer is simple. Take 91 and divide it by 7 and you get 13.

91 / 7 = 13

13 * 7 = 91

adoni [48]3 years ago

4 0

Answer:

Step-by-step explanation:

Divide 91 by 7 to get the answer.

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33. A competition question requests students to form a three-digit number.

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3 years ago

The area of a rectangular wall of a barn is 252 square feet. Its length is 10 feet longer than twice its width. Find the length

valentinak56 [21]

Answer: Length = 28 feet and width = 9 feet

Step-by-step explanation:

Let x = width of the wall.

Then, Length of the wall = 10+2x

Since , Area of rectangle = length x width

Then, as per given,

$252= (10+2x)x\\\\\Rightarrow\ 252=10x+2x^2\\\\\Rightarrow\ 2x^2+10x-252=0\\\\\Rightarrow\ x^2+5x-126=0\\\\\Rightarrow\ x^2+14x-9x-126=0\\\\\Rightarrow\ (x+14)-9(x+14)=0\\\\\Rightarrow\ (x+14)(x-9)=0\\\\\Rightarrow\ x=-14 \ or \ x= 9$

Since width cannot be negative , so x = 9

So width = 9 feet and length = 10+2(9)=10+18 = 28 feet

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3 years ago