danajoself danajoself

03-11-2016
Mathematics

contestada

Our product is 72. The difference between us is 1. What numbers are we?

Respuesta :

03-11-2016

xy = 72
x - y = 1
x = 1 + y

(1+y)y = 72
y + y^2 = 72
y^2 + y - 72 = 0
(y-8)(y+9) = 0
y = 8 , y = - 9

x = 1 + 8
x = 9

y = 8

i am a mathematics teacher. if anything to ask please pm me

Answer Link

Otras preguntas

Which equation can be used to solve for xxx in the following diagram? Choose 1 answer: Choose 1 answer: (Choice A) A 2x = 4x2x=4x2, x, equals, 4, x (Choice B) B

Identify how the two trianiges are congruent. Fill in the blank below the triangles with SSS, SAS, ASA, AAS, or HL. If the two triangles are not congruent, type

What is the name of this hydrocarbon? hexane O heptane O octane O pentane Mark this and return H H H H H ||||| H-C-C-C-C-C-H |||II H H H H H Save and Exit Next

what type of competition is evident amongst the squirrels

Chase went for a hike. He left at 8:00 A.M. At 10:00 A.M., he took a half-hour rest. Chase returned home at 12:00 noon. While walking, Chase averaged 5 km/h. Ho

The class-mark of the class 80-90 is

a² + b² + ab = 7 b² + c² + bc = 21 a² + c² + ac = 28 ab + bc + ac = ?

What is the probability of spinning an A? B B A B C A [?]% C

urgent help algebra 2

1.2.6 Quiz: Chronological Thinking Question 5 of 10 Though Japan's imperial system is thousands of years old, Japanese emperors had very little power during the