10 more than a number c is 3. Equation Solution
2 answers:
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Answer:
Circumference ≅ 195 mm
Step-by-step explanation:
The circumference of a circle is equal to:
Since we can replace that in the circumference equation giving us:
We know Diameter = 622 mm and pi = 3.14 so:
Answer:
x : y = 9 : 13
Step-by-step explanation:
Given that
3x - y : x + 2y = 2 : 5
Express the ratio in fractional form, that is
=
( cross- multiply )
5(3x - y) = 2(x + 2y) ← distribute parenthesis on both sides )
15x - 5y = 2x + 4y ( subtract 2x from both sides )
13x - 5y = 4y ( add 5y to both sides )
13x = 9y ( divide both sides by 13 )
x = y ( divide both sides by y )
=
, that is
x : y = 9 : 13