Answer:
width= 3.17
Step-by-step explanation:
Divide 38 (the area) by 12 (the width)
Answer:
x=10, y=-1
Step-by-step explanation:
x-y=11
2x+y=19
3x=30
x=10
10-y=11
-y=1
y=-1
USED ELIMINATION BC THERE WAS ALREADY A Y AND -Y
Answer:
350 miles
Step-by-step explanation:
$45 ×7=315
$395.50-$315=80.50
$80.50÷$0.23=350 miles
2. Segment addition postulate
3. Substitution property of equality (AC=111; AB=7x+1; and BC=4x)
7. Symmetric Property of Equality