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given: ⎺wj = ⎺kz. ∠w and ∠k are right angles. prove: △jwz = △zkj

The two triangles are congruent by HL postulate.

Step-by-step explanation:

Given:

The two triangles Δ JWZ and Δ ZKJ are right angled triangles.

Angles W and K are right angles, therefore by definition of right angles they are equal to 90 degrees.

WZ = KZ [Given]

JZ = JZ [Reflexive property of sides]

JZ is the hypotenuse of both the triangles.

WZ and KZ are the legs.

So, the two right angled triangles are congruent by HL postulate. 'H' means Hypotenuse and 'L' means Leg.

Therefore, the two triangles  Δ JWZ and Δ ZKJ  are congruent. Hence it is proved.

Out of 50 customers surveyed, 22 of them stated that they would buy a protection plan.
On the next day, 700 customers came.
Let’s predict how many of them would probably buy the protection plan.
Ratio = 50 : 22 = 700 : x
=> 700 * 22 = 15 400
=> 15 400 / 50 = 308
Thus, if 700 customer came in the next day, around 308 of the customers will buy life plan.