Answer:
a) 9r=63
b) 14 mi/h
Step-by-step explanation:
Let say r the speed of the slower cyclist,
2*r the speed of the faster cyclist,
they meet 3 hours later:
a)
<u> (r+2*r)*3=63 </u>
3r*3=63
9r=63
r= 63/9
r=7 (mi/h)
b)
<u>2r=14 (mi/h)</u>
Answer:
$35
Step-by-step explanation:
multiply 35 by the number of weeks (6) to get $210, subtract $210 from $250 to get $35
Answer:
720 inches squared
Step-by-step explanation:
for the square:
a = 24 x 24 = 576 inches squared
for the triangle:
36-24 =
a = 12 x 24 / 2
= 144 inches squared
576 + 144 = 720 inches squared
Answer:
the dogs age is 16
Step-by-step explanation: 16 divided by 4 equals 4, 4 plus 6 is 10. 16 divided by 8 equals 2, 2 plus 8 is 10. 10=10 so the dog is 16 years old.
Answer:
m∠ACD = 140°
Step-by-step explanation:
You know that 90° is a right angle.
And you know that 180° is no angle.
If m∠B = 60° and m∠A = 80°, all you do is add 60° and 80°.
<u>60 + 80 = 140</u>