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A water tank decreases by 10 gallons every 3 hours every day. What is the total change in the amount of water in the tank after 6 days?(1 point)
Responses

80 gallons
80 gallons

480 gallons
480 gallons

−80 gallons
negative 80 gallons

−480 gallons

3 answers

The water tank decreases by 10 gallons every 3 hours. Since there are 24 hours in a day, the water tank decreases by 10 gallons every (24/3) = 8 times in a day.

Therefore, the water tank decreases by 10 gallons x 8 times = 80 gallons every day.

After 6 days, the total change in the amount of water in the tank is 80 gallons x 6 days = 480 gallons.

So, the correct answer is 480 gallons.
A recipe calls for 13 of a container of yogurt. Each container of yogurt has 150 calories. The recipe makes 4 servings. Which set of calculations would give the correct number of calories per serving?(1 point)
Responses

13×150÷4
Start Fraction 1 over 3 End Fraction times 150 divided by 4

13×150×4
Start Fraction 1 over 3 End Fraction times 150 times 4

13÷150÷4
Start Fraction 1 over 3 End Fraction divided by 150 divided by 4

13×150÷14
Start Fraction 1 over 3 End Fraction times 150 divided by Start Fraction 1 over 4 End Fraction
To find the number of calories per serving, we need to divide the total number of calories (13 containers * 150 calories per container) by the number of servings (4 servings).

So, the correct set of calculations would be 13 * 150 ÷ 4.

Calculating this gives us:

13 * 150 = 1950
1950 ÷ 4 = 487.5

Therefore, the correct number of calories per serving is 487.5.

So, the correct answer is 13 × 150 ÷ 4.