abdinasir122 abdinasir122
  • 13-12-2016
  • Mathematics
contestada

when kara and Lauren add their ages, the sum is 20 when they multiply their ages, the product is 99 what is difference in their ages?

Respuesta :

MathisLif3
MathisLif3 MathisLif3
  • 13-12-2016
x+y=20
xy=99
Let a+b be denoted a,b
20 = 1,19 2,18 3,17 4,16 5,15, 6,14 7,13 8,12 (9,11) ..Stop
99=3^2*11
Thus the ages are 11 and 9 with a difference of 2.
Answer Link

Otras preguntas

Which of the following is an input value based on this set of ordered pairs? (3,4), (-5, 7), (8, -1) answers 4 ,-1 ,8 ,7
How do u work out 65% of 8700
for each of the number lines, write an absolute value equation in the form |x-c|=d, where c and d are some numbers, to satisfy the given solution set.
If vector p = [5, –3] and vector q = [1,4], find |p⃗−5q⃗|
I need help on these problems ASAP!!
Graph line y=-2x+5 with no x
provide two reasons why public participation is important for people experiencing lack of basic services​
Equations Pls give an explanation 2x + 12 = 24 I don’t understand it thank you
Is the statement 21:35 = 24:40 true?give reason
Which net represents this solid figure? ​