Answer:
7837
Step-by-step explanation:
1000 + 6901 - 64 = ?
=7837
Answer:
52.75 miles per hour (MPH)
Step-by-step explanation:
422÷8 is equal to 52.75
Answer:
150 mL
Step-by-step explanation:
We need a mixture that is at 50%, now we have 200 mL at 35% and another mixture that is at 70%, that is, we must calculate how much of this mixture is added, by the following equation
200 * 35% + x * 70% = 50% (x + 200)
70 + 0.7 * x = 0.5 * x + 100
0.7 * x - 0.5 * x = 100 - 70
0.2 * x = 30
x = 30 / 0.2
x = 150
150 mL must be added so that the mixture is 50%.
Answer:
the answer is 0 to 1 and 3 to 4
