<span>5(x -5) = x(14 -4) =>5*x-5*5=x*10 => 5x-25=10x =>10x-5x=-25 =>5x=-25 => x= -25/5=-5</span>
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Answer:
each gift =$10
total=y
number of gifts =x
therefore,total= each gift * number of gifts
=$10* x
Answer:
6.6 cm and 14.6 cm
Step-by-step explanation:
(a)
the length of arc AB is calculated as
AB = circumference of circle × fraction of circle
= 2πr ×
= 2π × 4 ×
= 8π ×
=
≈ 6.6 cm ( to the nearest tenth )
(b)
the perimeter (P) of sector AOB is
P = r + r + AB = 4 + 4 + 6.6 = 14.6 cm