Answer:
x=12
Step-by-step explanation:
3(2+x)=42
6+3x=42
3x=36
x=12
Answer:
x = 3
Step-by-step explanation:
Since all 3 sides of the triangle are congruent then the triangle is equilateral
The 3 angles are congruent and equal to 60°, thus
25x - 15 = 60 ( add 15 to both sides )
25x = 75 ( divide both sides by 25 )
x = 3
A.) 135 miles in 3 hours = 45 miles per hr
B.) 22 miles in 1 hour= 22 miles per hr
C.) 7.5 miles in 1/4 hour = 30 miles per hr
D.) 100/3 in 2/3 hour = About 49.9 mph
E.) 97.5 in 1.5 hours = 65 miles per hr
