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3 years ago

This drawing shows an isosceles triangle work out the size of angle a plz help as soon as possible thks

Mathematics

2 answers:

makkiz [27]3 years ago

3 0

Answer:

70°

Step-by-step explanation:

Size of angle a = (180°-40°) ÷ 2 (angle sum of triangle; base angles of isos triangle)

= 140° ÷ 2

= 70°

Pie3 years ago

3 0

Answer:

a + 40° = 180°

a t40°-40° =180°- 40°

a = 140°

Step-by-step explanation:

isosceles add up to 180°

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storchak [24]

Question:

Lisa walks at an average speed of 6 km/h for 15 hours.

Dan completes the same distance in an hour. Calculate Dan's average speed.

Answer:

$Speed = 90km/hr$

Step-by-step explanation:

Given

Lisa:

$Speed = 6km/hr$

$Time = 15\ hr$

First, we calculate the distance covered by Lisa:

$Distance = Speed * Time$

$Distance = 6km/hr * 15\ hr$

$Distance = 90km$

So, Dan distance can be represented as:

$Distance = 90km$ --- Dan completes the same distance as Lisa

$Time = 1\ hr$ -- Time to complete the distance

Dan's average speed is:

$Speed = \frac{Distance}{Time}$

$Speed = \frac{90km}{1\ hr}$

$Speed = 90km/hr$

<em>Hence, Dan's average speed is 90km/hr</em>

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3 years ago

2. (MCC 6.5) Find the value of x. 77° (6x17)°

Mariana [72]

Answer:

x = 17

Step-by-step explanation:

77° + (6x + 1)° = 180° (angels on a straight line)

Solve for x

77 + 6x + 1 = 180

Add like terms

6x + 78 = 180

6x + 78 - 78 = 180 - 78

6x = 102

6x/6 = 102/6

x = 17

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RSB [31]

Answer:

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Step-by-step explanation:

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Alex

Answer:

Inequality Form:

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Step-by-step explanation:

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