Answer:
r = 14 i think
Step-by-step explanation:
take the lowest degree angle and subtract it from the higher one and BOOM u got ur answer :) please mark me brainliest I need it to rank up
So first we write out their respective charges
A=65+30x (x=hours of A)
B=30+47.5y (x= hours of B)
we want to know when A and B are equal so just set them to be equal
65+30x=30+47.5x
subtract 30 from both sides
35+30x=47.5x
multiplyboth sides by 2 to get rid of the nasty decimal
70+60x=95x
subtract 60x from both sides
70=35x
divide both sides by 35
2=x
they must work 2 hours for them to be equal
Let's solve for a.
p
x
=
x
3
−
4
x
2
+
a
Step 1: Flip the equation.
x
3
−
4
x
2
+
a
=
p
x
Step 2: Add -x^3 to both sides.
x
3
−
4
x
2
+
a
+
−
x
3
=
p
x
+
−
x
3
−
4
x
2
+
a
=
−
x
3
+
p
x
Step 3: Add 4x^2 to both sides.
−
4
x
2
+
a
+
4
x
2
=
−
x
3
+
p
x
+
4
x
2
a
=
−
x
3
+
p
x
+
4
x
2
Answer:
a
=
−
x
3
+
p
x
+
4
x
2
There are many possible solutions to this problem.
Area (A) = Length (L) x width (w)
200 = L x w (any two numbers whose product is 200 is acceptable)
I am going to choose L=20 and w=10, then A = 20 x 10 = 200
Perimeter (P) = 2L + 2w
= 2(20) + 2(10)
= 40 + 20
= 60
Answer: one possible solution is L=20, w=10, P=60
