I think it would be (-y) to the power of -4. The exponents would add together to equal -4 while the y would just stay the same.
S=number of 6 cent stamps
t=number of ten cen stamps
e=number of 8 cent stamps
w=number of 20 cents stamps=2
cost=500 cents
6s+10t+8e+20w=500
w=2 since two 20 cent stamps wer bought
6s+10t+8e+40=500
minsu 40 both sides
6s+10t+8e=460
divide both sides by 2 to simplify
3s+5t+4e+230
also
10 more 6 cent than 10 cent
s=10+t
8 cent stamps is 3 times 10 cent stamps
e=3t
sub
s=10+t
e=3t
3(10+t)+5t+4(3t)+230
30+3t+5t+12t=230
30+20t=230
minus 30
20t=200
divid 20
t=10
sub back
s=10+t
s=10+10
s=20
e=3t
e=3(10)
e=30
20 six cent
30 eight stamp
10 ten cent
2 twenty cent
Answer:
x < -10
Step-by-step explanation:
Some treat the < as an equals sign to make it easier and less confusing to solve. Rewrite the equation with an equals sign for the time being.
18+12x= - 102.
Treat it as any other equation now and solve for x.
Subtract 18 from both sides to cancel out 18 on the left.
12x=-120
Divide by 12 to get x by itself.
x=-10.
Put the < back.
x < -10
Answer:
12.5416667
Step-by-step explanation:
