Answer:
3/10
Step-by-step explanation:
2/5 + x = 7/10
x = 7/10 - 2/5
x = 7/10 - 4/10
x = 3/10
Answer:
number 2
Step-by-step explanation:
educated guess
Answer:
a) area = side²
225 in² = side²
side = √225 = 15 inches
b) 15 inches per side x 4 sides x $1.35 per inch = $81.00
Step-by-step explanation:
First rounding off the both values..
Answer = 53300 * 600
= 31980000
%age error = [(53300*600 - 53320*599) / (53320*599) ]*100
=0.1%
