The solution for the #23 equation is either x=9 or x= -3
Lets look at the steps to construct
- First put compass on point A .
- Take more distance than half of AC.
- Then tick a little semicircle.
- Plot the compass on C.
- Now join the intersection point with B.
We are done
Answer:
x = 11 and y = 4
Step-by-step explanation:
Given equations are :
x+y=15 ...(1)
-2x+5y=-2 ...(2)
We need to solve the systems of equations.
Multiply equation (1) by 2.
2x+2y=30 ...(3)
Adding equation (2) and (3).
-2x+5y+2x+2y = -2+30
7y = 28
y = 4
Put the value of y in equation (1).
x+4=15
x = 11
So, the solution of the given equations are x = 11 and y = 4.
Answer:
500=2.5x+200
x=the amount of desserts.
500-200=2.5x
300=2.5x
x=120
Step-by-step explanation:
Answer:
x - 31
69
Tonisha has to make at least $100 in revenue
Step-by-step explanation:
Set up the inequality:
x - 31 represents her profit
Since she wants to make at least $69 a day, use
69
So, the inequality is x - 31
69
Then, solve for x to find how much she has to sell:
x - 31
69
x
100
So, Tonisha has to make at least $100 in revenue