Answer:
5x+2x
Step-by-step explanation
Considering you will buy the same amount of rulers and notebooks, x will represent the same number.
Since you will buy an x number of notebooks that cost $5, 5x, and an x number of rulers that cost $2, 2x, you can combine them to make 5x+2x.
Use
To use the expression you can fill in any number for x.
Imagine you have 30 students, you could replace each x in the expression with 30. This would give you 5(30) + 2(30).
Multiplying each would give you 150 + 60 which results in $210.
Answer:
-0.7
Step-by-step explanation:
First do 3.2-1.8= 1.4. So now we know that -2n=1.4. Next you solve for n to get the answer of -0.7 with your answer of the third option.
The answer is D. The temperature coefficient should be -1,5 as the temperature is dropping by the hour. Furthermore the starting temperature is 72 degrees so that should be added to the final answer. Therefore you get t = -1.5h + 72
Answer:
ive tried working it out and i couldnt seem to get it but my best guess would be C OR B
Step-by-step explanation:
