Answer: 40 degrees
Step-by-step explanation:
180-140=40
Heya!!!
Answer to your question:
2x-y=0 ----(i)
3x-2y=-3 -----(ii)
multiply (i) by 2
4x-2y=0 -------(iii)
Subtracting (ii) from (iii)
4x-2y-3x+2y=0-(-3)
x=3
put value of x in (i)
2 (3)-y=0
y=6
x=3,y=6
Hope it helps *_*
19) 15/a = 3/2
Start by cross multiplying....
3a = 30
Divide both sides 3
a = 10
21) 2/7 = 4/d
2d = 28
d= 14
23) 8/p = 3/10
80 = 3p
p = 26.66
25) 2 / -5 = 6/t
2t = -30
t = -15
Answer:
10. 99
11. 4102
12. 109
Step-by-step explanation:
Let the amount that Brandy paid be b, the amount that Katie paid be k, and the amount that Stephanie paid be s.
b=2k
s=k+3
b+s+k=56
Substituting and doing the equation only in terms of k, we get:
2k+(k+3)+k=56
4k+3=56
4k=53
k=13.25
Katie paid $13.25.
Hope this helps!