61.9k views
2 votes
Abraham has visited country somebody he has a cold or visiting at least 50 countries he plans to choose a school by visiting five new countries per year (Y) for the next several years which inequality and solution shows the amount of years they will take for Abraham to meet his goal

User Soleshoe
by
5.5k points

1 Answer

3 votes

Question:

Abraham has visited at least 50 countries; he plans to visit five new countries per year (Y) for the next several years. Which inequality and solution shows the amount of years they will take for Abraham to meet his goal.

Answer:


Countries \geq 50 + 5y


y \leq 29

Explanation:

Given


Countries = 50 ------ at least


Yearly =5

Required

Represent as an inequality

"at least" means
\geq

So the countries he has visited can be represented as thus;


Countries \geq 50

If

1 year = 5 countries

y years would be 5y countries

So, in y years; he'd have visited


Countries \geq 50 + 5y

To determine the value of y.

We have that


Countries = 195 in the world

Substitute 195 for Countries


195 \geq 50 + 5y

Collect Like Terms


195 - 50 \geq 5y


145 \geq 5y

Divide through by 5


145/5 \geq y


29 \geq y

Reorder


y \leq 29

This means that; he'll visit all countries in at most 29 years' time

User Smarie
by
5.2k points