Hi there! The answer is 102 mph.
A car travels at a steady speed and takes 5 hours to travel 510 miles.
To work out the average speed, we only need to find the speed per hour (miles per hour - mph). Since we now have our distance covered in 5 hours, we must divide by 5.
Distance covered per hour = 510 miles / 5 hours = 102 miles per hour.
Therefore the speed is 102 mph.
Answer:
We have 8 liters of 54% alcohol.
We will add "x" liters of 66% alcohol to make "8 +x" liters of 65% alcohol.
54 * 8 + 66 x = 65 (8 + x)
432 + 66x = 520 + 65x
x = 88 liters
Step-by-step explanation:
Round 28 to nearest ten and 868 to nearest hundred
900 ÷ 30 = 30
Answer:
The mass of 100 cubic centimeters of the material would be
1,000 grams.
The mass of 500 cubic centimeters of the material would be
5,000 grams.
Step-by-step explanation:
4-x I know this because my teacher just went over this problem
