The answer to your question would be -25/3

As decimal -8.333333

Because 1/4 is a fractional number, it is also a ratio which means it is **Rational. :)**

**Answer:**

x = 80

**Step-by-step explanation:**

Combine − 3/5x and 7/20x to get -19/20x.

Then combine -19/20x and 1/4x and you get -7/10x.

Then you multiply both sides by -10/7 which is the reciprocal of -7/10.

Make -56(-10) one fraction.

Multiply -56 and -10 and you get 560.

Then divide 560 by 7 to get 80.

A = 1/2h(b1 + b2)

2A = h(b1 + b2)

2A/h = b1 + b2

b1 = 2A/h - b2

**Answer:**

Thus, the value of x in the given triangle is 55°

**Step-by-step explanation:**

Given - Dimensions of triangle and angles

of triangle

Find - Value of x

Solution - The value of x in the given triangle is 55°.

As per the given dimensions of the triangle, the triangle is isosceles. This states that the neighbouring angle will be x° as well.

Thus, the mathematical expression of all the angles of a given triangle will be -

x + x + 80 = 190

2x + 80 = 190

2x = 190 - 80

2x = 110

x = 110/2

x = 55°

.