In fact from numbers 10 to 1000
99 are palindromes
Answer:
(a) 5:13
(b) 5:8
Step-by-step explanation:
There are 13 books in all.
8 books are new.
13 - 8 = 5 books are used.
Ratio of used books to all books: 5 used books : 13 books in total.
Ratio of used books to new books: 5 used books : 8 new books.
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the answer to this question is 1 tenth
Hello:
Increase in length is : (30×10)/100 =3 cm
Increase in width is : (20×5)/100 = 1 cm
the new length is : 30 cm+3cm =33 cm
the new width is : 20cm+1 cm =21 cm
the perimeter is : 2(20+30) = 100 cm
the new perimeter is : 2(33+21) = 108 cm
the pourcentage increase in the perimetr is : 8%
108 =100/100+8/100=1+8/100
Answer:
see explanation
Step-by-step explanation:
Since XZ is an angle bisector , then
(12)
∠ ZXY = ∠ ZXW = 39°
∠ WXY = ∠ ZXY + ∠ ZXW = 39° + 39° = 78°
(13)
∠ WXZ = ∠ YXZ = 146°
∠ WXY = ∠ WXZ + ∠ YXZ = 146° + 146° = 292°
