Answer:
-2 > k > -7
Step-by-step explanation:
what you do to one section, you have to do to all
-5 < -5k - 15 < 20
add 15 to each part
10 < -5k < 35
divide by -5 (when you divide by a negative, it flips the inequality signs!)
-2 > k > -7
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:
Answer:
1,890 minuts
Step-by-step explanation:
3 weeks = 7 days x 3 = 21 days
He rides his bike for "45 minutes to get to school and 45 minutes to get home" which is 90 minutes per day.
Therefore, in total, he rode for 21 days x 90 minutes per day = 1,890 minutes
Answer:
Step-by-step explanation:
Hope this helps!
Answer:
2240 scooter
Step-by-step explanation:
725+579+696=2000
2000*1.12=2240