Answer:
180
Step-by-step explanation:
Answer:
Therefore, Sara’s current age (5 years later) is 19 years old.
Step-by-step explanation:
Let xx be Sara’s age five years ago. Therefore, Sara’s aunt’s age 5 years ago is 4x4x.
The difference in their ages is a constant, no matter how many years have gone by. (Can you see why?)
4x−x=42
3x=42
x=42/3
x=14
14+5=19
Therefore, Sara’s current age (5 years later) is 19 years old.
3-(-2)
= 3-(-2)
= 3 + 2
= 5
The Answer is 5
Answer:
4. 1/2
5. 9/1
Step-by-step explanation:
4. 2/4 simplifies to 1/2
5. 18/2 simplifies to 9/1
Step-by-step explanation:
The spores always x3 after a month so going a month back they ÷3 instead so 900÷3 is 300 spores on the first month