Answer:
7
Step-by-step explanation:
7²/x²-2 when x=3
49/3²-2
49/9-2
49/7
answer=7
673 grams is closer to 670 than 680.
so 673 is rounded to 670 grams.
Subtract to find out how much she spent:
30 - 27.90 = 2.10
Divide that by the cost per minute:
2.10 / 0.14 = 15
The call was 15 minutes.
B. 1/4 that should be the answer
Answer:
A) 0.5 g/cm³
Step-by-step explanation:
To find volume, you must multiply length × width × height
So it would be 3 × 2 × 4
3 × 2 × 4 = 24
Volume = 24
Plug in both numbers into the equation for Density
12 ÷ 24 = 0.5
The density will be 0.5 g/cm³