5m+2(m+8)+3
5m+2m+16+3
7m+19
Distributive, carry the number 2 to the x and the y leaving 2x+2y
Answer:
418cm³
Step-by-step explanation:
volume of cuboid=l×b×h=11×2×19=418c³
Remember PEMDAS is the order of operations. parenthesis,exponents,multiply,divide,add,subtract. so -8x-4x is -12x. now simplified the problem is 3(9-12x) + 8(3x+4)=11 . now I would distribute the numbers before the parentheses and it becomes 27-36x + 24x+32 =11 . now combine like terms. 59-12x =11 . subtract 59 on both sides. -12x=-48. divide -12 on both sides. x=4. :-)
31.5 times 1.8.
=31.5×.8+31.5×1
=25.2+31.5
=56.7
