Answer:
Earns 56,500
Tax 56,500 × 10/100
=5,650
Invest = 50,850 × 50/100
= 25,425
Food = 25,425 × 30/100
=7,627.5
Shopping = 17,797.5 × 20/100
=3,559.5
Remaining = 14,237.5
Answer:
Each tank holds 4.33 gallons of water.
Step-by-step explanation:
Gallons of water used to fill tanks = 13 gallons
Number of fish tanks filled = 3 fish tanks
To calculate the amount of water in one tank, we will divide gallons of water used to fill tanks by number of fish tanks filled.
Water in one tank =
Water in one tank = 4.33 gallons
Each tank holds 4.33 gallons of water.
Answer:
15 feet per minute.
Step-by-step explanation:
- speed = distance ÷ time
- speed = 450 feet ÷ 30 minutes
- 15 feet per minute = 450 feet ÷ 30 minutes
Answer:
- <u><em>The lamp burns 6 ounces of oil per min.</em></u>
Explanation:
That the oil of a lamp burns at a <em>linear rate</em> means that the rate of burn is constant.
Hence, you can calcualte the rate with which the lamp burns the oil using any two ordered pairs.
- Rate of burn = [ change in oil ] / [change in time]
- Rate of burn = [Oil at time 2- Oil at time 1 ] / [time 2 - time 1]
Your two ordered pairs are (13 ounces, 10 min) and (7 ounces, 38 min).
Substituting those pairs in the equation for the rate, you get:
- Rate = [ 7 ounces - 13 ounces ] / [38 min - 10 min]
- Rate = ( - 6 ounces) / (18 min) = - 1/3 oz / min ≈ - 0.33 oz / min
The negative sign just shows that the amount of oil is decreasing (the oil is being burned).
Hence, the lamp burns 6 ounces of oil per min.