Answer:
a= 74
c= 10
d= 25
e= 10
f=16
g= 90
h= 24
j= 26
k= 154
m= 70
n= 170
p= 156
r= 154
s= 129
t= 148
v= 55
w= 41
x= 55
y= 24
z= 106
Step-by-step explanation:
Any equation where you have a y and a x
Start writing 78% as a fraction or decimal
Multiply by the number 80
The 78% of 80 is equal to 62.4
Well I don't know !
Let's check out the choices:
A). 3a - 4b = 21, a=0, b=7
3(0) - 4(7) = 21
0 - 28 = 21 Nope. That's not true.
B). 3a - 4b = 21, a=-3, b=2
3(-3) - 4(-2) = 21
-9 + 8 = 21
-1 = 21 Nope. That's not right.
C). 3a - 4b = 21, a=-2, b=-3
3(-2) - 4(-3) = 21
-6 + 12 = 21
6 = 21 Nope. That's not it.
Only one choice left.
This one had better be it:
D). 3a - 4b = 21, a=7, b=0
3(7) - 4(0) = 21
21 - 0 = 21
21 = 21 Yay ! That's it !
