Ask
your own question, for FREE!
Mathematics
14 Online
OpenStudy (anonymous):
Matthew is 3 times as old as Jenny. In 7 years, he will be twice as old as she will be then. How old is each now?
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (shane_b):
Let M = Matthew and J = Jenny: M=3J M-3J=0 [1st equation] M+7=2(J+7)= M=2J+14-7 M=2J+7 M-2J=7 [2nd equation] Solve the system of both equations to get M = 21 and J = 7.
OpenStudy (anonymous):
Thank you :)
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
Deadglock:
Do humans really need friends? This is Isaac Newton. He was... a jerk. And a loner.
whyjustwhy:
what is something to busy ur hands to prevent urself from cutting urslf
sobitter:
Grammar check? Once, there was a girl named Alaida. She was a small-town girl with big dreams of becoming a famous horse rider.
notmeta:
Nitrogen is an essential componant of all living things. However, atmospheric nitrogen is unavaibable for organisms to use.
Earfquake:
this is a zombie gloomy bear i painted for an art project ! we had to take a well known character and reimagine it and make it our own.
Jaynater:
ud835udde4ud835uddd6 ud835udde0ud835uddf6ud835uddfbud835uddf2ud835uddf0ud835uddffud835uddeeud835uddf3ud835ude01 ud835udde6ud835uddf2ud835uddffud835ude03ud83
Deadglock:
Do humans really need friends? This is Isaac Newton. He was... a jerk. And a loner.
30 minutes ago
28 Replies
4 Medals
whyjustwhy:
what is something to busy ur hands to prevent urself from cutting urslf
13 hours ago
13 Replies
0 Medals
sobitter:
Grammar check? Once, there was a girl named Alaida. She was a small-town girl with big dreams of becoming a famous horse rider.
18 hours ago
13 Replies
1 Medal
notmeta:
Nitrogen is an essential componant of all living things. However, atmospheric nitrogen is unavaibable for organisms to use.
1 day ago
4 Replies
2 Medals
Earfquake:
this is a zombie gloomy bear i painted for an art project ! we had to take a well known character and reimagine it and make it our own.
1 day ago
12 Replies
3 Medals
Jaynater:
ud835udde4ud835uddd6 ud835udde0ud835uddf6ud835uddfbud835uddf2ud835uddf0ud835uddffud835uddeeud835uddf3ud835ude01 ud835udde6ud835uddf2ud835uddffud835ude03ud83
18 hours ago
9 Replies
4 Medals