?) The cost of 2 kg of apples and 1kg of grapes on a day was found to
month, the cost of 4 kg of apples and 2 kg of grapes is 300. Represent the
algebraically and geometrically.
in a day was found to be * 160. After a
grapes is 300. Represent the situation
Answers
I hope this will help you
ʟᴇᴛ ᴜs ᴄᴏɴsɪᴅᴇʀ ᴛʜᴀᴛ ᴘʀɪᴄᴇ ᴏғ ᴀᴘᴘʟᴇ ʙᴇ x & ɢʀᴀᴘᴇs ʙᴇ ʏ
ᴄᴀsᴇ1:
2x+ʏ=160 ..............ᴇϙ1
ᴄᴀsᴇ 2:
4x+2ʏ=300 .......................ᴇϙ2
ᴅɪᴠɪᴅᴇ ᴇϙᴜᴀᴛɪᴏɴ 2 ᴏɴ ʙᴏᴛʜ sɪᴅᴇ ʙʏ 2
2x+ʏ=150 ..............................ᴇϙ 3
ᴡᴇ ɢᴏᴛ ᴛᴡᴏ ᴇϙᴜᴀᴛɪᴏɴs 1&3
2x+ʏ=160 &2x+ʏ=150
ᴛʜᴇɴ ᴘᴜᴛ sɪᴍᴀɴᴛᴇɴɪᴏᴜsʟʏ x ᴀɴᴅ ʏ ᴠᴀʟᴜᴇs
ɪɴ ᴇϙ 1 ɪɴ ᴇϙ 3
2x+ʏ=160 2x+ʏ=150
x=50
. x=50
100+ʏ=160 100+ʏ=150
ʏ=60 ʏ=50
x=30 x=30
60+ʏ=160 60+ʏ=150
ʏ=100 ʏ=90
ᴛʜᴇɴ ᴍᴀʀᴋ ᴛʜɪs ᴘᴏɪɴᴛ ᴏɴ ɢʀᴀᴘʜ ᴀɴᴅ ʏᴏᴜ ᴡɪʟʟ ғɪɴᴅ ᴛʜᴀᴛ ʙᴏᴛʜ ᴛʜᴇ ʟɪɴᴇs ᴡɪʟʟ ʙᴇ ᴘᴀʀᴀʟʟᴇʟ ᴛᴏ ᴇᴀᴄʜ ᴏᴛʜᴇʀ