Question

The sum of two consecutive odd integers is 80. What is the smaller number?

A: 41

B: 43

C: 37

D: 39

Answer 1

consecutive #s are represented as x and x+1
so u will do x+(x+1)= 80 make sense so far? :)

Answer 2

yep

Answer 3

makes sense

Answer 4

@Godlovesme - note that the question says "consecutive ODD integers"

Answer 5

e.g. 5 and 7 are consecutive ODD integers but 7 is NOT 5+1

Answer 6

im soo sorry =0 its x and x+2 right? @asnaseer D:

Answer 7

yup! :)

Answer 8

is it C? @asnaseer

Answer 9

pheew lol anyways sorry guys ;0
x+ (x+2)=80
2x+2-2=80-2
2x/2=78/2
x=39 --> smaller #

Answer 10

THANK YOU @Godlovesme <3

Answer 11

anytime ^.^

Answer 12

Can I ask another?

Answer 13

sure

Answer 14

I would use a different notation:
I would make the smaller number x-1
and the larger number x+1

so I would be getting
(x-1)+(x+1)=80,
then the 1s cancel and it is faster a bit, this way,.

Answer 15

If A = {3, 5, 7, 9} and B = {1, 2, 4, 6, 7, 9}, Find the intersection

A: {1, 2, 3, 4, 5, 6, 7, 9}

B: {1, 3, 5}

C: {2, 4}

D: {7, 9}

Answer 16

which numbers do both sets have in common?

Answer 17

Ohh okay now i get it sorry i forgot

Answer 18

yea find the common numbers in both sets

Answer 19

A?

Answer 20

or B

Answer 21

okay, look you have set A with numbers 3, 5, 7, 9
and you have a set B with numbers 1, 2, 4, 6, 7, 9

can you find the number(s) that is part of Set A, and part of set B at once?

Answer 22

and please don't just try to guess the answer, okay?

Answer 23

umm... does that make sense?