Answer:

Step-by-step explanation:
3x-2y=24......eqi
x+2y=48........eqii
now solving eq i&ii
4x=72
x=72/4
x=18
now putting the value of x in eqii
18+2y=48
2y=48-18
y=30/2
y=15
Answer:
River D: 2780 River C: 2280
Step-by-step explanation:
Please mark brainliest
Answer:
8 is a perfect cube
Step-by-step explanation:
8 = 2^3
Answer:
for a year it would be 90 dollars i think and for the second year i think it would be 30 because a year is 12 months and every month they take away 5 so 12x5 is 60 so 150 minus 60 is 90 and for the second year 90 minus 60 is 30
Step-by-step explanation: Math :)
Answer:
Two angles are said to be congruent if their respective sides and angles are of equal measure. Supplementary angles are two angles whose measures sum up to 180°.
Step-by-step explanation: