Answer:
20 (minutes)
Step-by-step explanation:
Look at the first columns, and it tells us that Charlie runs 2 laps in 8 minutes. Then simply divide by two, then you'll get that Charlie runs 1 lap in 4 minutes. So for five laps, multiply 4 by 5, which is 20.
Answer:
8 divided by 1 4/5 equals 4 4/9
Answer:
(-4, -3)
Step-by-step explanation:
First divide the second equation by -1. It becomes y = -3x - 15.
Then, substitute this equation into the y of the first equation.
x + 2(-3x - 15) = -10
x - 6x - 30 = -10
-5x = 20
x = -4
Then substitute the x value into the equation x + 2y = -10
-4 + 2y = -10
2y = -6
y = -3
Step-by-step explanation:
Three times the sum of a number and 4 is the same as 18 less than a number.
Solution,
Let the number be x, then
3(x+4)=x-18
3x+12=x-18
3x-x=-18-12
2x=-30
x=-30/2
x=-15
Answer:
the answer is -32............
