Answer:
Kell makes $8.50 an hour
Kell makes $1.50 more an hour
Add all three money earned by the total hours worked. 8.50
Step-by-step explanation:
Answer: 0.6 in 10 % ; 0.4 in 15 %
Step-by-step explanation:
1. (x*10%) + (y*15%)/ x+y=12%
2. x+y = 1 x= 1-y
(0.1x + 0.15y/ x+y= 12/100) * 100
(10x + 15y/x+y = 12)*(x+y)
10x+15y= 12x + 12y
-2x=-3y
2x = 3y 2(1 - y)= 3y
2-2y=3y 2= 5y
y= 0.4
x= 0.6
Answer:
1 : 140
Step-by-step explanation:
The scale used to make the model of height 4.2 feet = 1.28016m of a skyscraper (a very tall building) of height 525m is given as:
1.28016/525
= 1 : 410.156
≈ 1 : 410
x+y=12000
y=12000-x
(x)(.0615)+y(.06)=12736
x(.0615)+(12000-x)(.06)=12736
Let me know if you need more help. This is a system of equations problem I believe.
