Answer:
Jason = <span>20yrs.old</span>
Mandy = <span>15yrs.old</span>
Explanation:
Let
J = Jason's age
M = Mandy's age
<span>J+M=35</span> ..... eq. 1
<span>J−10=2<span>(M−10)</span></span> ..... eq. 2
From eq. 1
<span>J=35−M</span>
Substitute this in eq. 2.
<span><span>(35−M)</span>−10=2<span>(M−10)</span></span>
<span>35−10−M=2M−20</span>
<span>35−10+20=2M+M</span>
<span>45=3M</span>
<span><span>453</span>=<span><span>3M</span>3</span></span>
<span>15=M</span>
<span>J=35−M</span>
<span>J=35−15</span>
<span>J=<span>20</span></span>
Answer: a. the number is: 14
Explanation:
i mean just try to write in 7 instead of x in the second line
then it would say the number is: ....
what is 7 times 2?
14
so the answer is a
Hi!
This is most likely going to be a back-end web developer. A back-end web developer focuses on the server-side scripting behind Web applications.
They will also have extensive knowledge regarding the database used for the application at hand!
Hopefully, this helps! =)
The answer is B I did the test
