Answer:
15(2) + x(2)= perimeter
Step-by-step explanation:
The answer is in the attachment!!!
Answer:
30 mph
Step-by-step explanation:
time = distance/speed
If x represents Jane's speed along the summit then her total exploration time is ...
12/x + 40/(x -5) = 2 . . . . . hours
Multiplying by (x)(x -5), we get ...
12(x -5) +40(x) = 2(x)(x -5)
Dividing by 2 and subtracting the left side gives ...
x^2 -31x +30 = 0
(x -30)(x -1) = 0 . . . . . factor
Solutions are x = 30 and x = 1, values of x that make the factors zero. A speed of 1 mph makes no sense in this problem, so ...
Jane's speed along the summit was 30 mph.
Answer:
$22.67
Step-by-step explanation:
The school spends 635.85 dollars on passes for 43 students and 2 teachers, then the school spends
per person.
The school also spends 367.22 dollars on lunch for just the students, so the school spends
per person.
In total, a pass and lunch for each student was spent

Answer:
DG=9
Step-by-step explanation:
2x-4=x+7
x-4=7
x=11
x-2=11-2=9