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gregori [183]
3 years ago
5

Ed is 7 years older than Ted.Ed's age is also 3/2 times Ted's age.How old is Ed and Ted

Mathematics
2 answers:
My name is Ann [436]3 years ago
3 0
x-Ted's\ age\\x+7-Ed's\ age\\\\x+7=\dfrac{3}{2}x\ \ \ |subtrac\ 7\ from\ both\ sides\\\\x=\dfrac{3}{2}x-7\ \ \ |subtract\ \frac{3}{2}x\ from\ both\ sides\\\\-\dfrac{1}{2}x=-7\ \ \ |multiply\ both\ sides\ by\ (-2)\\\\\boxed{x=14}\leftarrow\ Ted's\ age\\\\14+7=\boxed{21}\leftarrow Ed's\ age
pochemuha3 years ago
3 0

Answer:

Ted is 14 years old, and Ed is 21 years old.

Step-by-step explanation:

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Nady [450]

Answer:

a) m arc AD = 145

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Step-by-step explanation:

a) mAD can be found because triangle OCM can be shown to be congruent to triangle ODM.

The angle AOD is supplementary to DOB which we just showed to be congruent to the known 35° angle COB. Therefore AOD = 180 - 35 = 145°

The arc length is identical to the arc angle when measured between radii.

b) The radius OC = √(OM² + (CD/2)² = √(3² + 4²) = 5.

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2 years ago
Ben has square garden that has sides measuring 12 feet. Ben want to increase every side of his garden by x, feet in order to pla
Valentin [98]

Answer:

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Step-by-step explanation:

(a) The new side length of Ben's garden is (12+x), since x is the amount of increase above the existing 12 ft side length.

The perimeter is the sum of the lengths of the four equal sides, so is ...

  perimeter = 4 × side length

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(b) We can solve this by dividing by 4, then subtracting 12.

  26 = 12 +x . . . . . divide the above equation by 4

  14 = x . . . . . . . . . subtract 12

The solution is x = 14.

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2 years ago
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lozanna [386]
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A line segment connecting any two opposite Vertex of a quadrilateral​
Wewaii [24]

Answer:

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Step-by-step explanation:

5 0
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