4/9+1/5=20/45+9/45=29/45 of the wall is covered up by two couches
What you need to do is plug in the values of the variables, 4(4)-7, because a=4.
Next, you solve; 4(4)-7= 16-7 = 9.
In conclusion, the expression equals 9.
(32 + 90 + 92 + 82 + 64 + x) / 6 = 85
(360 + x) / 6 = 85
360 + x = 85 * 6
360 + x = 510
x = 510 - 360
x = 150 <===
Answer:
- t = 2.7 seconds
- t = 4.9 seconds
Step-by-step explanation:
<h3>Given </h3>
Function
<h3>To find</h3>
- Value of t when s(t) = 213
<h3>Solution</h3>
- 213 = -16t^2 + 122t
- 16t^2 - 122t + 213 = 0
- t = (122 ± √(-122)² -4*16*213)/2*16
- t = (61 ± √313)/16
- t = 2.7 seconds, t = 4.9 seconds
Answer: 72km per minute
Step-by-step explanation:
Given that 1mile = 1.6km
45 mile = x
Cross multiply to find the value of x
x = 45 x 1.6km
= 72km per minute
