reginaldlegette
12.11.2020 •
Mathematics
I will give a Brilliant it’s right!
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Ответ:
5h+3f+3d
5a+2x-2y
Step-by-step explanation:
5 hamburgers, 3 fries, and 3 drinks
5 apple, 2 banana groups, 2 single bananas
if I’m not right I’m sorry
Ответ:
Step-by-step explanation:
let burger be = x
let fries be = y
let drink be = z
according to picture
2x+y+z+3x+2y+2z
5x+3y+3z
for apple = y
for banana = x
single banana = z
5y + 2x - 2z
Ответ:
10(a^2 - 1) = 630
(a^2 - 1) = 630/10
a^2 - 1 = 63
a^2 = 63 + 1
a^2 = 64
a = +- 8