Answer:
a. 72°
Step-by-step explanation:
The sum of angles in a triangle is 180°. The two base angles of an isosceles triangle (one with two congruent sides) are congruent, so we have ...
54° + 54° + x° = 180°
x° = 180° - 108°
x° = 72°
If quantity t varies inversely with a quantity r ,
Then mathematically t α 1/r,
Introducing a constant, t = k/r .
When t = 6 then r = 5,
therefore, 6 = k/5
k = 6×5
k = 30 (Constant of variation)
Which means the equation connecting t and r will be t = 30/r
To find the value of t when r = 15, we use the equation of this variation
such that, t = 30/15
t = 2
Answer:
Step-by-step explanation:
1 meter = 100 cm/ 100cm = 1 meter
400cm = 4m
Ans 4 meters
Answer:
$15
Step-by-step explanation:
18/12 = 1.50 per donut
10 x 1.5 = 15
Answer:
<h3><u><em>
20y + 30</em></u></h3>
Step-by-step explanation: