Question

The product of two integers is -120. If one number is 15 ,find the other

Answer 1

Step-by-step explanation:

if one is(15)

(15)×x=(120)

x=(-120)/15

x=(-8)

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Answer 2

Solution:-

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$\large\to{\underbrace{\underline{\sf{Understanding\:the\:concept:-}}}}$

$\implies$ Here it is given in the question that the product of 2 integers is -120 and one of the number is 15. Now, the question has asked us find out the 2nd number. So, to find the 2 nd number we have to form an equation and then solve it. Follow the steps shown below to get the 2nd number.

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ANSWER:-

❍ 2nd number is = -8

GIVEN:-

» Product of 2 integers = -120

» 1st number = 15

TO FIND:-

➨ Here we have to find the 2nd number.

SOLVING STEP BY STEP:-

• Let the 2nd number be x
• To find the 2nd number first we have to find the 2nd number we have to form an equation.
• Equation = -120 = 15 × x
• By solving the above equation we will get the value of x that is the 2nd number.

• Finding the value of x (2nd number):-

$\to \sf{ - 120 = 15 \times x}$

$\to \sf{Transposing \: 15 \: to \: L.H.S.}$

$\to \sf{ \dfrac{120}{15} = x}$

$\to \sf{ \dfrac { - \not{120}}{\not{15}} = x}$

$\to \sf{ \dfrac{ - 8}{1} = x}$

$\to \sf{ - 8 = x}$

$\underline{\boxed{\sf \dag x = - 8}}$

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VERIFICATION:-

$\to \sf{Product = 1st \: no. \times 2nd \: no.}$

$\to \sf{15 \times ( -8)}$

$\to \sf{15 \times -8 = - 120}$

$\to \sf{ - 120}$

$\to \sf{ - 120 = - 120}$

$\sf{\therefore L.H.S = R.H.S}$

Hence, verified.

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