Answer: p = −15
Step-by-step explanation:
Add 11p to both sides.
−10p+11p=−11p−15+11p
p=−15
Answer:
The answer is 2
Step-by-step explanation:
4=2s
Divide both sides by 2
4/2=2
s=2
N - the number
8/100 × n = 0.08 × n = 0.08n
Answer:
1.C=10cm
3.b=12cm
5.x=5cm
6.x=8mm
Step-by-step explanation:
a2 + b2 =c2
82 + 62=c2
64 +36 =c2
[100=c2] Square root
c=10cm
Total age of pupils
= 12.7 x 10
= 127 years
127 - 11 - 10 - 12 - 11 - 14 - 13 - 14 - 16 = 26 ( total age of the other 2 pupils added together )
however, since the ninth pupil is two years younger,
26-2=24
24/2=12 ( age of ninth pupil )
12+2=14 ( age of tenth pupil )
thus, (a) 12 years old,
(b) 14 years old.
