210 - (20+5)*8 = 210 - 25*8 = 210 - 200 = 10
2/5 - 3/8 = (2x8)/(5x8) - (5x3)/(5x8) = 16/40 - 15/40 = 1/40
1 5/8 + 5 5/7= 1 5x7/8x7 + 5 5x8/7x8= 1 35/56 + 5 40/56= 6 75/56= 7 19/56
Find a common denominator (40 is a good choice in this case):3/10 + 1/5 + 1/8 = 3x4/10x4 + 1x8/5x8 + 1x5/8x5= 12/40 + 8/40 + 5/40= 12+8+5/40= 25/40= 5x5/8x5= 5/8
4 / 5 x 7 / 8 = 4x7 / 5x8 = 28 / 40 = 7 / 10 seven tenths
Since 5 is written 8 times just do 5x8 which is 40 and that is your answer.
70 + (5 x 8) = 110
210 - (20+5)*8 = 210 - 25*8 = 210 - 200 = 10
4 plus (5 times 8) = 44or 4+5x8 = 72 depending what way you look at it
57. ((5X8)/4)(5+7)=120, (5X8)/4X5)+7=2+7=9, (5X8)/(4X5+7)=1.481... Take your pick. - - - Without any parentheses, the order of mathematical operations is - Multiplication, Division, Addition and Subtraction. Following these mandates, 57 is the proper answer.
5
I'm going to assume the polynomial in question is 2x7+(3-2x3)+(5x8-4x) Expanding out the polynomial: 2x7+3-2x3+5x8-4x Order the terms by powers of x: 5x8+2x7-2x3-4x+3 Since 8 is the highest power of x, the degree of the polynomial is 8.
5*8 = 40
x = 8y = 6(5x8) + (3x6) = 58(5x8) - (3x6) = 22
Neither. -5*8 = -40 is a constant.
2/5 - 3/8 = (2x8)/(5x8) - (5x3)/(5x8) = 16/40 - 15/40 = 1/40
40 8x5=40 5x8 :/