The problem could be solved by evaluating the expression 7×(-3) is
"A cold front comes in and causes the temperature to drop 3 degrees
every hour. What is the change in temperature after 7 hours?" ⇒ 3rd
Step-by-step explanation:
We need to find the problem that could be solved by evaluating the
expression 7 × (-3)
Let us write an expression for each problem
- A pool is being filled. The water level rises 3 centimeters every minute. What is the change in water level after 7 minutes?
∵ The water level rises 3 centimeters every minute
∴ The rate of change is 3 cm/min
∵ The time is 7 minutes
∴ The change in water level after 7 minutes = 7 × 3
∴ The expression is 7 × 3
- Amber removes 7 pounds of apples from a barrel. Then she uses double this amount to make apple pies. How many pounds of apples does she use?
∵ Amber removes 7 pounds of apples from a barrel
∵ She uses double this amount to make apple pies
∴ The number of pounds of apples she uses = 7 × 2
∴ The expression is 7 × 2
- A cold front comes in and causes the temperature to drop 3 degrees every hour. What is the change in temperature after 7 hours?
∵ The temperature drop 3 degree every hour
∴ The rate of change is -3 degree/hour
∵ The time is 7 hours
∴ The change in temperature after 7 hours = 7 × (-3)
∴ The expression is 7 × (-3)
- Jarod has $7 in his pocket. He gives $2 to his mother. How much does he have now
∵ Jarod has $7 in his pocket
∵ He gives $2 to his mother
∴ He has 7 - 2
∴ The expression is 7 - 2
The problem could be solved by evaluating the expression 7×(-3) is
"A cold front comes in and causes the temperature to drop 3 degrees
every hour. What is the change in temperature after 7 hours?"
Learn more:
You can learn more about the expressions in brainly.com/question/3638399
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