Answer:
3/16
Step-by-step explanation:
16 pupils, 11 play both, 1 plays piano only and 1 flute only
⇒ 11 + 1 + 1 = 13 pupils who play at least one instrument
⇒ 16 - 13 = 3 pupils who don't play either instrument
⇒ Out of the 16 total pupils, 3 play neither, putting this into numbers:
which is then also the answer.
Answer:
6(4+y)
Step-by-step explanation:
sum is adding and times is multiply
Step-by-step explanation:
6a
Sn = n/2 [2a + (n-1) d]
(2Sn)/ n = 2a + (n - 1) d
2a + (n-1) d = (2Sn)/n
(n-1) d = (2Sn - 2a)/n
6b
d = ¹/16
7a.
E = (mv²)/2 + mgh
E = m( v²/2 + gh)
E/m = v²/2 + gh
E/m - gh = v²/2
2(E/m - gh) = v²
so
7b.
v = 14 m/s
Answer:
2x-7 or 7-2w
Step-by-step explanation:
48 = 2(w+4) + 2w
48 = 4w+8
40 = 4w
w= 10 yd
A= 10 * 14
A = 140 yd
