40$ - 100% (full price)
x$ - 70% (100-30=70%)
40 * 70 = 100x
2800 = 100x
x = 28
Answer 28$
or
40$ = 100%
then 1% = 40/100 = 0.4$
so 70% will be 0.4 * 70 = 28$
So what you do is divide 12 and 15 to get 0.8 so your answer is 8 mph (constant rate)
Sin^5 x = <span>1/16 (10 sin(x) - 5 sin(3x) + sin(5x))</span>
Answer: 31
Step-by-step explanation: if x = 8 it would look like this
3(8) + 7
\/ \/
24 + 7
\/
31
Answer: x=3
y=4
Step-by-step explanation:
since both equations equal y then you can just make them equal
so 3x-5=-2x+10
3x=-2x+15
5x=15
x=3
y=3(3)-5
y=9-5
y=4
