Answer:
Step-by-step explanation:
145+15x>490. subtract 145 from both sides
15x>345, divide both sides by 15
x>23
So she will need to run for more than 23 weeks to reach her goal.
The square root of x equals ten is 5
Step-by-step explanation:
7x+ 14y+21z
hope this helps
Answer:
The value of x in the equation is 1.1
Step-by-step explanation:
7x = 7.7
Divide 7 on both sides of the equation.
x = 1.1