Hi there!
8:30 to 12:45 is four hours and 15 minutes. You could easily count this but if you're having trouble you could also use a clock. :P
Hope this helps!
Subtract 2b by both sides which gets -b+4=-5 then subtract 4 by both sides so you get -b=-9 and divide -1 by both sides so that b=9
25/3 pages of a book in 10 minutes
Multiply both numbers by the reciprocal of 10, which is 1/10
So, Charlotte reads
5/6 pages of a book in 1 minute.
Answer:
Explainion are shown in pictures above
Given:
Circle with chord and tangent.
To find:
The measure of angle 1.
Solution:
Let 2 be the adjacent angle of angle 1.
If a tangent and a chord intersect at a point, then the angle formed is half of the measure of the intercepted arc.
Sum of the adjacent angles in a straight line is 180°.
⇒ m∠1 + m∠2 = 180°
⇒ m∠1 + 124° = 180°
Subtract 124° from both sides.
⇒ m∠1 = 56°
The measure of angle 1 is 56°.