spacehunter22
05.01.2021 •
Mathematics
Group C
(4 x 6 = 2
17. If the cost of 8 book is Rs 520, find the cost of 10 books.
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Ответ:
cost of 8 books = 520 AED
we can do this using direct proportion
8/520 , 10/x
(cross multiply
= 8x = 520 x 10
= 8 x 5200
x = 5200/8
x = 650 AED
therfore,
cost of 10 books is 650.
Ответ:
x³ = 125
y¹ = 10
Step-by-step explanation:
x³
5³ = 125
y¹
10¹ = 10