Answer: the first one
Step-by-step explanation:
It is the only one that is right
Answer:
12 seconds
Step-by-step explanation:
Lets say that Williams current age is x, since it is currently unknown
From here we know that in 15 years (x+15) he will be 3 times his age 5 years prior (3x-5). Thus we can set these equations up as equal to one another
1) x + 15 = 3(x - 5)
2) x + 15 = 3x-15
3) 30= 2x
4) 15 = x
5) Now this age is his current age of 15 years, but they also want his age 15 years from now
The equation is x + 15 = 3(x - 5)
This should be correct now, sorry for the misconception. Good luck
Answer:
50°
Step-by-step explanation:
∠ RST = (arc QC - arc RT) / 2
= (150° - 50°) / 2
= 50°
Answer:
y=-5/2x+7
Step-by-step explanation:
y=mx+b (slope intercept form)
y-2=-5/2(x-2)
y-2=-5/2x+10/2
y-2=-5/2x+5
y=-5/2x+5+2
y=-5/2x+7
