brysong
10.07.2019 •
Mathematics
And fast! 1) which expression forms an equation with the given expression? 24 – 5 • 2 = a. (5 + 3) • 2 b. 2(6 + 1) c. 5 • 8 – 2 d. 4 • 9 + 2 2) which expression forms an equation with the given expression? 6 • 5 + 18 ÷ 3 = a. (4 • 12 ÷ 2) + 10 b. 2 • 11 + (2 + 12) c. 4 + 5 • 10 – 8 d. (9 + 4) • 4 – 6 3) what statement makes the open sentence 3x + 9 = 24 true? a. x = 3 b. x = 5 c. x = 11 d. x = 15 4) what statement makes the open sentence 7x – 7 = 2x + 8 true? a. x = 0 b. x = 1 c. x = 3 d. x = 4 5) what statement makes the open sentence 2.4 = 6x true? a. x = 4.0 b. x = 2.5 c. x = 0.4 d. x = 0.2
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Ответ:
1. is B beacuse if you do 24 – 5 • 2 first you do 5x2 you get 10 then you subtract 24-10 and get 14 B is the right answer because 2(6 + 1) you do 6+1= 7 then you times it by 2 and get 14. hope you like my answer
Ответ: