Zero seconds left in the last quarter
Answer:
-1.6
Step-by-step explanation:
4x +8y=0
y=0.8 ⇒
- 4x+8*0.8=0
- 4x+6.4=0
- 4x=-6.4
- x= -6.4/4
- x= -1.6
Answer:
x 2 y -4
Step-by-step explanation:
13x = -54 -20y give it is A
-10x = 60 + 20y give it is B
A + B the sum of the left side of equation is equal to the sum of the right side of equation
13 + (-10x) = -54 -20y + 60 + 20y
3x = 60-54
3x = 6
x=2
so put the x value in A or B equation you can receive y value (B is easier)
y = -4
Answer: 30
Step-by-step explanation:
you should draw a model of this. Draw a rectangle labeling opposite sides as x (width). then label the other 2 sides as x-6 (which is the length). If x(x-6)=720, then you should be able to solve. x^2 (squared)-6x=720. Then make it into a quadratic. x^2-6x-720, and solve. You'll get (x-30) and (x+24) meaning x can either equal 30, or -24. If you didn't know- you get positive 30 because x-30=0 (that's what (x-30) and (x+24) means). Obviously a side length can't be negative, so it's 30
Answer:81% or .81
Step-by-step explanation:
81% or .81
Explanation:
243 ÷ 300 = .81