Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
HELP PLEASE! 8th grade math. Thanks!!!?
Ok hi and thank you!!!! I need to do 18 through 28 But only the EVEN numbers so 18 20 22 ect I've been trying and trying and I can't do it! I need to see how you got the answer too thanks a ton!!!! 😘
3 Answers
- BattleaxeLv 76 years agoFavorite Answer
18)
3/8 + p/8 = 3 1/8
3/8 + p/8 = 25/8
p = 22
20)
4g/16 - 3/8 - g/16 = 3/16
4g/16 - 6/16 - g/16 = 3/16
3g - 6 = 3
3g = 9
g = 3
22)
4/13 = -2b/13 + 6b/26
8/26 = -4b/26 + 6b/26
8 = 2b
b = 8/2 = 4
24)
243 - 67 - 92 = 84mi
84mi/7hr = 12mi/hr average
26)
4n + 11 - 7n = -13
-3n = -24
n = -24/-3 = 8
28)
x/2 + 2/3 = 5/6
3x/6 + 4/6 = 5/6
3x/6 = 1/6
x = 1/3
- ?Lv 76 years ago
.......3.....p.........1
18. --- + --- = 3 ---
.......8.....8.........8
3.....p......25
--- + --- = ----
8.....8.......8
p....25...3
-- = --- - ---
8.....8....8
p....22
-- = ---
8.....8
p = 22...........ANS
-------------------------------
......4g...3.....g.....3
20. ---- - --- - --- = ---
......16...8....16....16
4g...6.....g.....3
---- - --- - --- = ---
16...16..16....16
4g...g.....6.....3
---- - --- - --- = ---
16...16..16....16
3g....6.....3
---- - --- = ---
16...16....16
3g.....3.....6
---- = --- + ---
16....16....16
3g.....9
---- = ---.......// The denominators are the same
16....16.......// so you can just work with the numerators
3g = 9
g = 9/3
g = 3.........ANS
-----------------------------
......4.....-2b....6b
22. --- = ----- + ----
.....13.....13.....26
4.....-2b....3b
--- = ----- + ----
13.....13....13
4.....b
--- = --
13...13
b = 4.............ANS
---------------------------
24. Lydia rode 243 miles in 3 days.
On day#1, she rode 67 miles
On day#2, she rode 92 miles
On day#3, she rode 243-67-92 = 84 miles
She rode 84 miles in 7 hours, so she averaged
84 miles.......x
------------ = -----------
7 hours......1 hour
(7 hours)(x) = (84 miles)(1 hour)
......(84 miles)(1 hour)
x = --------------------------
........(7 hours)
x = 12 miles
Lydia's average speed on day#3 was 12 miles/hour........ANS
-----------------------
26. 4n+11-7n = -13
4n - 7n + 11 = -13
-3n + 11 = -13
-3n = -13 - 11
-3n = -24
n = -24/(-3)
n = 8..............ANS
---------------------------------------
.......x.....2.....5
28. --- + --- = ---
.......2.....3.....6
3x.....4.....5
---- + --- = ---
6.......6.....6
3x.....5.....4
---- = --- - ---
6.......6.....6
3x.....1
---- = ---
6.......6
3x = 1
x = 1/3.............ANS
---------------------------------
- 6 years ago
okay so #18 you find that 3 and 1/8 is equal to 25/8 and you subtract 3/8 from that to find P. P=22
math used to be my favourite subject haha that should get you started
