Y:
180-85 = 95
3y + 5 = 95
3y = 90
y = 30
X:
2x + 1 = 85
2x = 84
x = 42
Anna runs at a rate of
to reach her goal.
<u>Step-by-step explanation:</u>
Here we have , Anna wants to run 10-mile race in under 50 minutes. We need to find What rate, miles per hour, must she maintain to reach her goal. Let's find out:
Anna wants to run 10-mile race in under 50 minutes , i.e. she runs at a rate of:
⇒ 
⇒ 
⇒
⇒
{
}
⇒ 
⇒ 
⇒ 
Therefore , Anna runs at a rate of
to reach her goal.
Answer:
1. Yes
2. Because by moving the negative sign from the x to the 5 by dividing, the inequality sign has to switch and it'll become x>-5 as well, and vice versa,
3. x > -4
Step-by-step explanation:
For #3:
2.1x + 43.2 > 1.2 - 8.4x
2.1x + 8.4x > 1.2 - 43.2
10.5x > -42
x > -4
<span> the value of x is
2(3x+6+2x-4)=94
6x+12+4x-8=94
6x+4x=94-12+8
10x=90
x=9
</span>
Answer:
275°
Step-by-step explanation:
-445+360=-85+360=275°