Step-by-step explanation:
4x+28=5x+8
x=20
.............
Answer/Step-by-step explanation:
3:2 = 6:4 = 15:10
<u>Check work:</u>
3 ÷ 2 = 1.5
6 ÷ 4 = 1.5
15 ÷ 10 = 1.5
Answer:
1.5 hours
As a general rule, 1,000 square feet of the house should take 1.5 hours to clean, according to Cleaning 4 Profit. So a 3,000 square feet home should take 3 hours to clean, and so on.
Consider the expression 
This expression contains two terms with 
group them:
Now simplify term 
Now 
This expression is defined for all x.
Answer:
Speed of a= 21 miles/hr
r = Speed of b= 7 miles/hr
Speed of a = 3r
Step-by-step explanation:
The cyclist are 112 miles apart
Time traveled by two = 4 hours
Speed of a = 3 * speed of b
If a cylcles 3 times More than b, then a will cover 3*distance of b
But speed = distance/time
Time = 4hours
Total distance=112
a = 3b
3b + b = 112
4b = 112
b = 112/4
b = 28 miles
a = 3b
a = 3*28
a = 84 Miles
They bought traveled 4 hours
Speed of a = 84miles/4 hours
Speed of a= 21 miles/hr
Speed of b = 28miles/4 hours
Speed of b = 7 miles/hr
