At a lunch stand each hamburger has 60 more calories than each order of fries. if 3 hamburgers and 4 orders of fries have a total of 1580 calories how many calories does a hamburger have

H= Hamburger

f= fries

3 h + 4f = 1580 calories - equation 1

If each order of hambruger is 60 cal more than fries then we turn it into...

h - f = 60 calories - equation 2

And flip over the equation to make h the subject, it is possible to do it for f but ny preference is h.

h = 60 + f - equation 3

3 ( 60 + f ) + 4 f = 1580 cal

180 + 7f = 1580 cal

7f = 1580 - 180 cal

7f = 1400 cal

f = 1400 / 7

f = 200

So each order of fries have 200 Calories

We take equation 1 and substitute it into the equation.

3h + 4 (200) = 1580 cal

3h + 800 = 1580 cal

3h = 1580 - 800 cal

3h = 780

h= 260

Each order of a hambruger has 260 calories to check the answer we substitute again.

3( 260) + 4(200) = 1580

780 + 800 = 1580

Answer is correct

The answer is : v = 55 + 8m plug in m = 25 v = 55 + 8(25) = 255 25 minutes after baxter begins filling the tank, the volume of water in the tank will be 255 gallons. slope: m = 8 gal/min for every min the water is on, the volume of water in the tank increases by 55 gallons. y-intercept: 55 (0,55) the initial volume of water in the tank was 55 gallons.

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