Answer:
2316 pounds
Step-by-step explanation:
If this is linear, we can create 2 coordinate points for the gallons of fuel and weight of the plane. If the plane weighs 2030 pounds with 20 gallons of fuel, the coordinate point is (20, 2030). If the plane weights 2251 with 54 gallons of fuel, the coordinate point is (54, 2251). We can use those 2 points to find the slope of the line:
This means that for every gallon of gas, the plane's weight increases by 6.5 pounds. Now that we have the slope, we can plug that in, along with one of the points we created, to find the model for this situation. Use the point-slope form:
y - 2030 = 6.5(x - 20) and
y - 2030 = 6.5x - 130 so
y = 6.5x + 1900
This means that if there was NO gas at all in the plane, x = 0, the plane weighs 1900 pounds. Now we can use that model to find the weight of the plane, y, when x = 64 gallons:
y = 6.5(64) + 1900 so
y = 2316 pounds.
Answer: .458 or about .46 cents if you round to the nearest cent
Step-by-step explanation:Since the price for 5 pounds of potatoes is 2.29 all together you can divide 2.29 by 5 which gives you the price for one pound of potatoes. Since one pound of potatoes would be the unit price. Hope this helps :D
Answer:
x=2, y= 4
Step-by-step explanation:
Equation 1 is 2x-4y = -12
Equation 2 is 2x+y = 8
Subtracting the two equations gives -4y-y = -12-8 (The 2x and the other 2x cancel each other out).
Simplifying we get -5y = -20 and y =4
Substituting y =4 into original equation back we get 2x -4(4) =-12
This equals 2x -16 =-12 and 2x = 4 and x =2
The answer is B) (6,-8.75).
Answer:
54,710
Step-by-step explanation:
multiply the average by 5 to get the amout that they should all have togetehr (271,000) and the add the 4 people's money together (216,290) and then subtract them