Question

The sum of two numbers is 90. Their difference is 12. What are the numbers?

Select one:
a. no solution
b. 31 and 59
c. 35 and 47
d. 39 and 51

Answer 1

let the numbers be a an b

a + b = 90
and a - b = 12

Answer 2

Now solve

Answer 3

all u have to do is add two numbers like 31+59=?your answer it has to equal 90 cause its asking to find 2 #'s that equal 90 so check A first and se if u get 90 as a answer

Answer 4

sorry I meant b so ...31+59=90 so B is ur answer

Answer 5

actually it is c because the numbers have to have a difference of 12

Answer 6

if the answer 31+59 and equals 90 doesn't that answer already have a difference of 12

Answer 7

no it has a difference of 28 @daddysgirl14

Answer 8

ok then its C ....

Answer 9

it's 39 and 51

Answer 10

thank you for trying though(: @daddysgirl14

Answer 11

thx add me if u want

Answer 12

@annas we already figured this out it is c not b

Answer 13

51 - 39 = 12 :3

Answer 14

hi everyone

Answer 15

51-39 does equal 12 but im still think its C

Answer 16

so it could be c or d but I'm going with c

Answer 17

x+y = 90
x-y = 12

Add the equations

2x = 102
x = 102/2
x = 51

putting x in equation 1

(51) + y = 90
y = 90 - 51
y = 39

so x= 51 , y= 39
51 - 39 = 12

Answer 18

Please dont guide her wrong. Thank you!

Answer 19

51 + 39 = 90 too

Answer 20

i said that at first too