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Lelu [443]
3 years ago
12

(Will give brainiest)5y - x = 104x - 4y = 112 = 6x + 3y

Mathematics
1 answer:
kow [346]3 years ago
7 0
Is there any answer choices to what we are looking for?
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The product of two number is 20 and the sum of square is 41 find the number​
Marianna [84]

Let the two number is a and b

so,

product =ab=20

sum of square=\bold{a^2+b^2=41   }

Then,

\bold{(a+b)^2=a^2+b^2+2ab  }

\bold{ (a+b)^2=41+2×40  }

\bold{ (a+b)^2=81  }

\bold{a+b=\sqrt{81}   }

\bold{a+b=9 }•••••••••(equation I)

Now,

\bold{(a-b)^2=a^2+b^2-4ab   }

\bold{ (a-b)^2=41-4×20  }

\bold{(a-b)^2=41-40   }

\bold{a-b=\sqrt{1}   }

\bold{a-b=1 }••••••••(equation II)

Now,combine the equation I and equation II

we,get

\bold{a+b+a-b=9+1   }

\bold{a+\cancel{b}+a\cancel{-b}=10   }

\bold{ 2a=10  }

\bold{a=\dfrac{10}{2}   }

\blue{\boxed{  a=5 }}

Then,

put the value of a in equation II.

we get that,

\bold{5-b=1   }

\bold{b+1=5   }

\bold{b=5-1   }

\bold{\boxed{\blue{b=4}}  }

<em><u>so</u></em><em><u>,</u></em><em><u> </u></em>

<em><u>The</u></em><em><u> </u></em><em><u>two</u></em><em><u> </u></em><em><u>number</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u> </u></em><em><u>5</u></em><em><u> </u></em><em><u>and</u></em><em><u> </u></em><em><u>4</u></em><em><u>.</u></em>

6 0
2 years ago
Read 2 more answers
The product of -3x and (2x+5) is …​
PolarNik [594]

\huge{\boxed{\boxed{ Solution ⎇}}} \

- 3x \times (2x + 5) \\  =  - 3x \times 2x +  - 3x \times 5 \\  =  - 6x ^{2}  - 15x

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ ツ

꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐

5 0
3 years ago
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Work out the size of angle X
damaskus [11]
It’s 60 because both lines are parallel
6 0
3 years ago
Write a question about Teresa and the sock puppets for which the answer is 3 explain the answer
disa [49]
I dont know if this will help you...teresa has 1 bag with 3 sock puppets, she uses them to entertain her classmates at school.how much sock puppets does she have?answer:she has 3 because she has 1 bag in which contain 3 sock puppets so 1×3=3.
4 0
3 years ago
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What is the sum of the complex numbers 2 + 3i and 4 + 8i, where i = <br> −1<br> ?
kotykmax [81]
-1, -4 because 2+3(-1)= -1 and 4+8(-1)= -4
8 0
2 years ago
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