Answer:
Step-by-step explanation:
here you go,
Answer:
A. 4/8 + 2/4 =1 B.5/8 + 1/4 =0.875
C.6/8 + 3/4 =1.5 D.7/8 + 2/4 =1.375
Answer:
He will need a 94 to get an 82 average
Step-by-step explanation:
82 x 7 =574
80 x 6 = 480
574-480 = 94
Answer:
s=6 years
m=48 years
Step-by-step explanation:
Let
Mother's age=m
Son's age=s
m=8*s
m=8s (1)
m+6=9/2(s+6)
m+6=9/2s+27 (2)
Substitute (1) into (2)
m+6=9/2(s)+27
8s+6=9/2s+27
8s+6-9/2s-27=0
8s-9/2s-21=0
(16-9/2)s-21=0
7/2s=21
s=21÷7/2
=21×2/7
=42/7
s=6
Present age of the son=6
m=8s
=8(6)
m=48
Present age of the mother=48
20% of $50 is:
$50* (20/100)= $10.
$50- $10= $40
The new price is $40.
Hope this helps~
