Question

The sum of the numbers is 25. One of the numbers is twice the other. Which

of the following expression is true?

(1)

a. + = 25

b. = + 25

c. 2 = 25

d. + 2 = 25
​

Answer 1

Step-by-step explanation:

x and x+9 are the numbers

x+x+9=25

2x+9=25

2x=25-9

2x=16

x=16/2

x=8

x+9=8+9=17

8 and 17 are the numbers

if you are not in algebra, here is another solution:

25/2=12.5

12+13=25

11+14=25

10+15=25

9+16=25

8+17=25 answer

you can do this because 25 is a small number and trial and error, although not the best strategy, is a mathematical strategy that you can use..

please mark me as brainliest!

Answer 2

Answer:

let two numbers be X and y

therefore,X+y=25

X=2y

put this value in first equation

therefore,2y+y=25

3y=25

y=25/3

to find x

X=2(25/3)

x=50/3

verification

50/3+25/3=25

75/3=25

25=25

L.H.S=R.H.S