Question

the product of two numbers is 64 their sum is 20 what are the numbers​

Answer 1

Answer:

Let the two numbers be x and y.

Given,

sum of two numbers is 20.

x + y = 20.

y = (20 - x) ----- (1)

Given,

product of two numbers = 64.

xy = 64 ------- (2)

Substitute (1) in (2),

x (20 - x) = 64

20x - x^2 = 64

-x^2 + 20x - 64 = 0

-1(x^2 - 20x + 64) = 0

x^2 - 20x + 64 = 0

x^2 - 16x - 4x + 64 = 0

x(x - 16) - 4(x - 16) = 0

(x - 16)(x - 4) = 0

x = 16 and x = 4.

Therefore,

the 2 numbers are 16 and 4.

From eq 1

x + y = 20

16 + 4 = 20.

20 = 20.

From (2)

xy = 64

16 × 4 = 64

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Answer 2

Answer:

ANSWER

Step-by-step explanation:

a×b = c

a×20=64

we will divide 20 from60

20÷60=3

20×3 =60

the answer is 3.....

hope it helps you ...