Answer:
6752 cm³ of wood
Step-by-step explanation:
V = 40cm×34cm×30cm = 40800 cm³
v = 38cm×32cm×28cm = 34048 cm³
V - v = 40800cm³ - 34048cm³ = 6752 cm³ of wood
First you gotta remove all parentheses by multiplying the factors next remove all grouping if the terms are containing exponents then you combine all terms and lastly you combine the constants
C:5
just divide 445 by 89 and you get 5
Answer: the number must be placed in the box is 9
suppose: the number must be placed in the box is x
have:
5u + 3(4u - 6) = -3u -27 + 20u + x
⇔ 5u + 12u - 18 = -3u - 27 + 20u +x
⇔ 17u + 3u - 20u = -27 + 18 + x
⇔ 0 = x - 9
⇔ x = 9
Step-by-step explanation:
