X + y = 85
2x + 4y = 218
x = 85 - y
<span>2(85 - y) + 4y = 218 </span>
<span>170 - 2y + 4y = 218 </span>
<span>170 + 2y = 218 </span>
<span>2y = 48 </span>
<span>y = 24 </span>
<span>x = 61</span>
Drawing a king is 1/4 and drawing a black card is 26/52
Answer:
Step-by-step explanation:
Distance is given by , where represents speed or rate and represents time.
What we're given:
- speed of
- time of hours
Thus, the distance covered by the airplane is:
In scientific notation: