Given that,
Speed of first bicycle = 9 mph
Speed of second bicycle = 5 mph
Suppose the length of the circle 24 miles.
We need to find the relative velocity
Using formula of relative velocity
Put the value into the formula
We need to calculate the time
Using formula of time
We need to calculate the distance of the points where the two bicycles meet
Using formula of distance
For first bicycles,
For second bicycles,
Hence, The points where the two bicycles meet after every 6hr at 30 miles and 54 miles.
Answer:
7(2+3x)-3x and 4(3+3x)+2(1+3x)
Step-by-step explanation:
7(2+3x)-3x
= 14 + 21x - 3x
= 18x + 14
2(6x+7)+10x
= 12x + 14 + 10x
= 22x + 14
4(3+3x)+2(1+3x)
= 12 + 12x + 2 + 6x
= 18x + 14
7(2+3x)-3x and 4(3+3x)+2(1+3x) are equal expressions.
Cross multiply
(x-6)(x+3)=x²-6x+3x+18=x²-3x+18
(x+7)(x+5)=x²+7x+5x+35=x²+12x+35
that means the inequality is
x²-3x+18≥x²+12x+35 which simplifies to
<em>—17≥15x or 15x+17≤0</em>
Answer:
Step-by-step explanation:
Johnny mows lawns after school and earns $10 per hour.
Let the number of hours h mows = x
Total earning of Johnny = $10x
If the earning is represented by the variable 'y' equation representing the total earnings will be.
y = 10x
Table for Input output values,
x 0 1 2 3 4
y 0 10 20 30 40
