9514 1404 393
Answer:
(x, y) = (452.5, -986)
Step-by-step explanation:
Dividing the first equation by 300 gives the standard form equation ...
12x +5y = 500
Dividing the second equation by 180 gives the standard form equation ...
22x +10y = 95
Subtracting the second of these equations from twice the first gives ...
2(12x +5y) -(22x +10y) = 2(500) -(95)
2x = 905 . . . . . simplify
x = 452.5 . . . . .divide by 2
The second equation tells us ...
y = (95 -22x)/10 = (95 -9955)/10 = -9860/10 = -986
The solution is (x, y) = (452.5, -986).
First, lets find how many miles the cyclist can ride per minute (speed = distance/time).
18/45 = 0.4 miles per minutes
Second, lets find how many miles the cyclist can ride per hour.
0.4 * 60 = 24 miles per hour
Third, lets find how many miles teh cyclist can ride in 6 hours.
24 * 6 = 144 miles in 6 hours
Best of Luck!
Answer:
The numbers are 24 and 41
Step-by-step explanation:
Hope This Helps!!
(3 * x) - 4 is the expression.
(4, ?) is on 8x - 3y = -10
The ? is the missing y coordinate. (4, y) satisfies 8x - 3y = -10
8x - 3y = -10. From point (4, y), we would replace x = 4 in the equation below. y remains the unknown.
8*4 - 3y = -10
32 - 3y = -10
-3y = -10 - 32
-3y = - 42
y = -42/-3
y = 14
So the coordinate is (4, 14)