Answer:
B.
Step-by-step explanation:
Resort to graph.
Answer:
27 years old
Step-by-step explanation:
Let Alvin's age be x and Elga's age is y:
y - x = 15
x + y = 27
2y = 42 (use elimination method)
y = 21
x = 6 (plug it back into either equation)
Therefore Alvin is 6 and Elga is 27
Answer:
7 is in the ten-thousands place.
Step-by-step explanation:
You can put this solution on YOUR website! You must first get the equation into slope-intercept format: y = mx + b. . 2x+-+5y+=+-25<span> . Subtract </span>2x<span> from both sides</span>
