Let x=4, y=7. Don't forget to use PEMDAS and don't forget to add solution.
1. 4y + 2x ÷ 9² =
2. (8x ÷ 2y) 5³ + 4 =
1. 4y + 2x ÷ 9² =
2. (8x ÷ 2y) 5³ + 4 =
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1. 4y + 2x ÷ 9² = 28. 10
2. (8x ÷ 2y) 5³ + 4 = 289.71
SOLUTION:
1. 4y + 2x ÷ 9²
= 4(7) +2 (4) ÷ 9²
= 28 + 8 ÷ 81
= 28 + 0.098765432
= 28.098765432
Round off to the nearest hundredths
≈ 28. 10
2. (8x ÷ 2y) 5³ + 4
= [8(4) ÷ 2(7)] 5³ + 4
= (32 ÷ 14 ) 125 + 4
= (2.285714286) 125 + 4
= 285.7142857 + 4
= 289.7142857
Round off to the nearest hundredths
≈289.71