Answer:
10.5 percents
Step-by-step explanation:
1)100+30=130 percents;
2) 130/100*15=19.5percents of discount from the first price
3) 130-19.5=110.5 percents- new price from the initial price
4)110.5-100=10.5 percents - the percentage of profit
Answer:
Step-by-step explanation:
Assuming that 23 is the first term
4823
Answer:
23 m
Step-by-step explanation:
The computation of the height of the entire screen is shown below;
= a + b
where
a = 21 × tan 17 degrees
= 21 × 0.305
= 6.4 m
And
b = 21 × tan 38 degree
= 21 × 0.781
= 16.4 m
So, the height of the entire screen is
= 6.4 m + 16.4 m
= 22.8 m
= 23 m
Answer:
Step-by-step explanation:
x - y = 2√3 given
-y = -x + 2√3 subtract x from both sides
y = x - 2√3 multiply both sides by -1
xy = 1 given
x(x - 2√3) = 1 substitution
x2 - 2x√3 = 1 distribute
x2 - 2x√3 - 1 = 0 subtract 1 from both sides
Can you solve for x then y?
