15 + (8 x h)
63 -15 = 48
48 / 8 = 6
Joan rented the bike for 6 hours.
Answer: <ABD is a right angle and m<ABD = 90°
Step-by-step explanation:
Answer:
Step-by-step explanation:
By Pythagoras' Theorem, a² + b² = c².
Substituting the values of a and b, we get:
7² + 25² = c²
49 + 625 = c²
c² = 674
c ≈ 26.0 (to 1 d.p.)
Let
x--------> the number of gray bricks
y--------> the number of red bricks
we know that
------> inequality 1
<em>-----> </em>inequality 2
therefore
<u>the answer is</u>
x > 0
0.45x+0.58y≤200