<span>2y = x + 10
3y = 3x + 15
</span>multiply the first by 3
6y=3x+10
6y-10=3x
put 6y-10 in place of 3x in the second one
3y=6y-10+15
-3y=5
y=-5/3
x=-20/3
these statements are true based on answer
The system has one solution.
Both lines have the same y-intercept.
<span>The solution is the intersection of the 2 lines
</span>
Answer:
19. 4^9=262144
20. 349524
Step-by-step explanation:
Each week, the number of new cases is equal to 4^n, for the 9th week, this is equal to 4^9=262144.
The number of total cases each week is a geometric series. The sum of the first n terms of a geometric series with common ratio r and first term a is
a(1-r^n)/(1-r). Using this, 4(1-4^9)/(1-4)=349524.
Answer:
x < -60
Step-by-step explanation:
Our inequality is:
-0.4x - 10 > 14
Add 10 to both sides:
-0.4x > 14 + 10
-0.4x > 24
Divide both sides by -0.4; remember that when dividing an inequality by a negative number, we must flip the inequality:
x < 24/-0.4
x < -60
Hope this helps!
Answer:
C
Step-by-step explanation:
It’s how you would solve the equation
Radius= diameter/2
diameter= circumference/ pi
pi= 3.14( unless stated)
10.7 /3.14 = 3.407
3.407/ 2 = 1.7035
radius = 1.70