Lets day the original price of the dvd player was $100,
36% marked down means you pay $64x
64x = $41.60
100x = 100/54 x 41.60 = 4160/64 = #65.00 = original cost
similarly, stereo tuners = 100/78 x 69.42 = 6942/78 = $89 original cost
DVD = 65- 41.60 = $ 23. 40 less
Stereo = 89- 69.42 = $ 19.58 less
Diffrence is $ 3.82
so your answer is the dvd player price was reduced by $3.82 more than the stereo tuner.
Answer:
B
Step-by-step explanation:
Using the Sine Rule in ΔABC
= =
∠C = 180° - (82 + 58)° = 180° - 140° = 40°
Completing values in the above formula gives
= =
We require a pair of ratios which contain b and 3 known quantities, that is
=
OR
= → B
Answer:
Step-by-step explanation:
first term = a = 3
common ratio = 2nd term ÷ first term
= 12 ÷ 3
r = 4
Answer:
this is just for part A sorry i dont get part B
oof bad drawing of a trapezoid
Answer: 7z²-9z+20
Step-by-step explanation:
PEMDAS - Please Excuse My Dear Aunt Sally - Parentheses, Exponents, Multiplication, Division, Addition, Subtraction