The student is not correct.
Answer:
X=4
Step-by-step explanation:
30x+5=31x+1
x=4
The answer is <span>A. Kim paid the most.
</span>
x - the total amount
k - Kim's amount
s - Sherri's amount
j - Judy's amount
k + s + j = x
k = 3/7 x = 0.43 x
s = 35%x = 0.35x
j = x - k - s = x - 0.43x - 0.35 x = x - 0.78x = 0.22x
So:
0.43x > 0.35x > 0.22x
k > s > j
Standard form is y=mx+b
y=9x+4
Answer:
b = 1
Step-by-step explanation:
-18+4b=7(4)+(7)-(6b)
-18+4b= 28 + (-42b)
4b-16=-42b+28
Add 42b to both sides.
4b-16+42b=-42b+28+42b
46b-18=28
Add 18 to both sides.
46b-18+18=28+18
46b=46
b= 46/46
b=1