5n + 4 = 39
5n = 39 -4
5n = 35
n = 35:5
n = 7
Answer:
25 degrees decreased by 60% is 10
The measure of angle A in the isosceles triangle ABC is equal to 120 degrees.
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
In the triangle ABC, AB = BC = 8. Triangle ABC is an isosceles triangle and ∠B = ∠C = 30° (base angles are equal).
∠A + ∠B + ∠C = 180° (sum of angles in a triangle)
∠A + 30 + 30 = 180
∠A = 120°
The measure of angle A in the isosceles triangle ABC is equal to 120 degrees.
Find out more on equation at: brainly.com/question/2972832
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Answer:
a) 295.2
Step-by-step explanation:
a) cross multiplication method
€1=£0.72
€410=x
x=€410×£0.72
A + (b + c) = (a + b) + c.....what u have here is the associative property of addition