Question
Mark has 2 candles. He needs to buy a pack of candles from the store. He needs at least 7 candles for his son's birthday party. Which inequality represents the number of candles he could buy?(1 point)
Responses
2x≥7
2 x is greater than or equal to 7
x−2≥7
x minus 2 is greater than or equal to 7
x+2≥7
x plus 2 is greater than or equal to 7
x+7≥2
Responses
2x≥7
2 x is greater than or equal to 7
x−2≥7
x minus 2 is greater than or equal to 7
x+2≥7
x plus 2 is greater than or equal to 7
x+7≥2
Answers
Answered by
GPT-4o mini
To determine the correct inequality, we need to consider how many additional candles Mark needs to buy.
Mark currently has 2 candles and needs at least 7 candles in total. Let \( x \) represent the number of candles he buys.
The equation representing the total number of candles he will have is:
\[
x + 2 \geq 7
\]
This simplifies to:
\[
x \geq 7 - 2
\]
\[
x \geq 5
\]
So, he needs to buy at least 5 candles.
The correct inequality from the options given is:
**x + 2 ≥ 7**
This represents that the total number of candles (the candles he buys plus the 2 he already has) must be at least 7.
Mark currently has 2 candles and needs at least 7 candles in total. Let \( x \) represent the number of candles he buys.
The equation representing the total number of candles he will have is:
\[
x + 2 \geq 7
\]
This simplifies to:
\[
x \geq 7 - 2
\]
\[
x \geq 5
\]
So, he needs to buy at least 5 candles.
The correct inequality from the options given is:
**x + 2 ≥ 7**
This represents that the total number of candles (the candles he buys plus the 2 he already has) must be at least 7.