Answer:
6 x25/4=75/2
150/4=75/2
simplify 150/4
75/2=75/2
Step-by-step explanation:
2+4z-18
change it so it's an equation
2+4z-18=0
then get 4z alone on one side by subtracting 4z from both sides
2-18=-4z
-16= -4z
divide both sides by -4
a negative divided by a negative becomes positive
4 =z
plug it in
2+4(4)-18
4x4 is 16
2+16-18=0
0=0
the same can be done for the second one 2+k-8
make it 2+k-8=0
move the k to get it alone so subtract k from both sides
2-8=-1k
-6 = -1K
you can divide by K to make K=6
plug in 2+6-8=0
0=0
B) 50+36×=$212 ; 4.5. That is the answer.
You can think of a 20% discount as only 80% of the original cost or:
Cost = 0.80x
Answer:
y=6 x=8.49
Step-by-step explanation:
Since angles p and r are 45deg QP and QR are the same length.
the pythagorean theorem states that a^2+b^2=c^2.
so 6^2+6^2=72
the square root of 72 is 8.49.
so x or c = 8.49