Answer:
4 and 19
Step-by-step explanation:
One number : 4x+3 (this is 3 more than 4 times x)
Another number: x This is tricky because the main number for comparison is "another number", which is x
Sum of the #s is 23: Means add them and = 23, so
x+(4x+3) = 23
5x+3=23
5x=20
x=4 and the other # is 4x+3, so 4(3)+3=19
In 12 minutes it traveled 120 miles. So, it is going at 10 miles per minute.
Answer:
x =
Step-by-step explanation:
Given
4x - = x + 7
Multiply through by 2 to clear the fraction
8x - 1 = 2x + 14 ( subtract 2x from both sides )
6x - 1 = 14 ( add 1 to both sides )
6x = 15 ( divide both sides by 6 )
x = =