Tìm Y: Y × 12,25 - Y + Y × 5,2 = 1645
I need help urgently thanks
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GN
GV Nguyễn Trần Thành Đạt
Giáo viên
2 tháng 12 2023
\(a,y\times2,8+5,2\times y=48\\ y\times\left(2,8+5,2\right)=48\\ y\times8=48\\ y=\dfrac{48}{8}=6\\ ---\\ b,y\times12,25-y+y\times2,75=1050\\ y\times\left(12,25-1+2,75\right)=1050\\ y\times14=1050\\ y=\dfrac{1050}{14}=75\)
2 tháng 12 2023
a: \(y\cdot2,8+y\cdot5,2=48\)
=>\(y\left(2,8+5,2\right)=48\)
=>\(8y=48\)
=>\(y=\dfrac{48}{8}=6\)
b: \(y\cdot12,25-y+y\cdot2,75=1050\)
=>\(y\left(12,25-1+2,75\right)=1050\)
=>\(y\cdot14=1050\)
=>\(y=\dfrac{1050}{14}=75\)
NL
2
13 tháng 5 2022
y x 3,8 + y x 5,2 +y =36,4 y x 3,8 + y x 5,2 +y x 1 = 36,4 y x ( 3,8 + 5,2 + 1 ) = 36,4 y x 10 = 36,4 y = 36,4 : 10 y = 3,64
29 tháng 5 2019
\(8y+4y+2y+y-5y=28,6\)
\(\Rightarrow9y=28,6\)
\(\Rightarrow y=\frac{286}{90}\)
NT
2
NT
Nguyễn Thị Thương Hoài
Giáo viên
VIP
16 tháng 12 2022
y x 1,2 + y x 4,6 + y x 5,2 = 18
y x ( 1,2 + 4,6 + 5,2 ) = 18
y x 11 = 18
y = 18 : 11
y = \(\dfrac{18}{11}\)
16 tháng 12 2022
Y x 1,2 + Y x 4,6 + Y x 5,2 = 18
Y x (1,2 + 4,6 + 5,2) = 18
Y x 11 = 18
Y = 18 : 11
Y = \(\dfrac{18}{11}\)
HV
16 tháng 11 2021
1. ” I need a favor” – “_____________”. (What can I do for you? / I’m sorry. I’m really busy. / How can I help you? / All are correct)
2. They collect and empty garbage_____________Dong Xuan Market. ( at / in / on / for)
3. The Y & Y is planning to help the community by_____________all the members to participate in a recycling program. ( encouraging / encourage / encourages / encouraged )
4. When do you want to know who is telephoning, you say: _____________.
( Excuse me. Who is speaking?
Hi, there. Who are you.
Good morning. Who is talking.
Sorry. Who is saying?)
5. Seven countries _____________ in the discussion. ( told / spoke / hold / participated)
6. They need to_____________now. ( list / help / enroll / save)
7. He participates _____________our Golf Club. ( in / from /at /to)
8. We received 100_____________for that job. (applications /favors /hobbies / activities)
9. You need to _____________ before the end of August. ( join / enroll / participate / encourage)
10. We like _____________ activities such as fishing and camping.
( outdoor / inside / indoor / outside)
11. Our product is sold _____________ (worldly / worldwide / world / worded)
12. Three years __________, an English businessman got lost in Toronto.( just / next / late / ago)
13. The_____________is to increase sales in Asia. ( aim / arm / ace / aid)
14. Mai’s _____________include listening music and reading books.
(habits / favorite / favors / pastimes)
15. “ May I help you?” – “_____________”
( How can I help?
What can I do for you?
Yes. That’s very kind for you.
I’m afraid I’m busy now)
`y xx 12,25-y+y xx 5,2=1645`
`=>y xx (12,25-1+5,2)=1645`
`=> y xx 16,45=1645`
`=> y=1645:16,45`
`=>y=100`