Answer:
The Answer is that one box of Oranges costs $7.13 and one box of Apples costs $12.99.
Step-by-step explanation:
Let o = oranges and a = apples
Equation 1:
3o + 14a = 203
Solve for o:
3o = 203 - 14a
o = 203/3 - 14/3a
o = 67.66 - 4.66a
Equation 2:
11o + 11a = 220
Substitute:
11(67.66 - 4.66a) + 11a = 220
744.26 - 51.26a + 11a = 220
-40.26a = 220 - 744.26
-40.36a = -524.26
a = -524.26/-40.36 = $12.99 for a box of Apples
Solve for oranges, o:
o = 67.66 - 4.66a
o = 67.66 - 4.66(12.99)
o = 67.66 - 60.53 = $7.13 for a box of Oranges
Hope this helps!! Have an Awesome day!!! :-)
If (x+4)(x+9) then either x+4 = 0 or x+9 = 0
This is by the zero product property
Answer:
it is simple those are linear equation.
u multiply 2 to 5 then find its lcm u'll get the answer.
Answer:
m<EFG =3n + 17
m<GFH= 2n + 23
3n+17+2n+23=180°
5n + 40 = 180
5n = 140
n = 28
m<EFG= 3(28)+17= 84+17= 101°
m<GFH= 2(28)+23= 56+23 = 79°
This one is so easy that your brain refuses to accept it.
It's looking for a harder answer, but can't find it !
You're totally correct, as far you went. x² + 2x does = -1
Now add ' 1 ' to each side: x² + 2x + 1 = 0
Can you factor that quadratic ?
Can you mash it through the quadratic formula ?
Actually, it's the simplest possible perfect square.
x² + 2x + 1 = (x + 1)²
So the solutions of x² + 2x + 1 = 0 are both x = -1 .
Don't say anything.
I know it's embarrassing.
