M= -2 , hope this help you <3
Do you have the equation needed to solve for x?
Answer:
77 feet
Step-by-step explanation:
Difference is asking for subtraction. The equation would look like:
Top of Hill - Valley = X
(P.S.- 2/3 is equal to . 67)
120.67 - 43.67 = 77
Marking as Brainliest is much appreciated.
Answer:
Step-by-step explanation:
If <em>a</em> is fixed and <em>b</em>,<em>c</em> are unknowns then the equation <em>b</em>+<em>c</em>=10-<em>a</em> has 11-<em>a</em> solutions. They are pairs (b,c): (0,10-a), (1,9-a), (2,8-a), ... (10-a,0). As <em>a</em> runs from 0 to 10 we have total number of solutions (11-0)+(11-1)+...(11-1)=11+10+...+1=(1+11)*11/2=66.
