He sold 17 t-shirts. Subtract 40 from 125 and then divide 5 into 85. Your answer is 17.
The mistake that was made is that she should of multiplied the fractions by the exponents first
Answer:
V= 105cm^3
Step-by-step explanation:
V=volume
(1/3)V+40=(5/7)V
(5/7)V-(1/3)V=40
(15/21)V-(7/21)V=40
(8/21)V=40
(21/8)(8/21)V=(21/8)(40
V=21*5
V=105 cm3
(1/3)(105)=35, 35+40=75, 75/105=15/21=5/7
Four million two hundred fifty thousand
I believe the answer would be 50
explanation:
calculate
2 ÷ 5^-2
use negative power rule x^-a = 1/x^a
2 ÷ 1/5^2
simply 5^2 to 25
2 ÷ 1/25
use this rule a ÷ b/c = a • c/b
2 • 25
simplify
50
