Answer:
-21x^2+50x-24
Step-by-step explanation:
3x((5)(2)-7x+2)-2((5)(2)-7x+2)
30x-21x^2+6x-20+14x-4
50x-21x^2-24
-21x^2+50x-24
Answer:
You can use the formula for the perimeter of a square to find the length of one of the square's sides. Then substitute that information into the formula for the area of a square and solve.
Step-by-step explanation:
Taking the exam same as you 90 % sure this is right
First car is x
second car is y
25x+30y=1550
x+y=55
Multiply the second equation by -25 for elimination method to cancel out x
-25x-25y=-1375
Add the two equations
5y=175
y=35
Plug this value into the second equation
x+35=55
x=20
Final answers:
First car=20 gallons
Second car=35 gallons
Equation: 26=6(5−4f)
Step 1: Simplify both sides of the equation.
26=6(5−4f)
26=(6)(5)+(6)(−4f)(Distribute)
26=30+−24f
26=−24f+30
Step 2)Flip the equation.
−24f+30=26
Step 3)Subtract 30 from both sides.
−24f+30−30=26−30
−24f=−4
Step 4) Divide both sides by -24.
-24/-24f=-4/-24
f=1/6
