Answer: a burger is $5.25, fries are $1.50
b = burger, f = fries
3b + 3f = 20.25
5b + 8f = 38.25
First, solve for b in terms of f
3b = 20.25 - 3f
b = 6.75 -f
Then substitute that for b in the other equation to solve and get a numerical value for f.
5(6.75 -f) + 8f = 38.25
33.75 -5f +8f = 38.25
33.75 + 3f = 38.25
3f = 4.5
f = 1.5
Now substitute that in to get a numerical value for b
b = 6.75 - 1.5
b = 5.25
Checking the math:
3b + 3f = 20.25
3(5.25) + 3(1.5) = 15.75 + 4.5 = 20.25
First we convert the m to km by dividing the number by 1000. 1000m = 1 km.
150,000,000,000 / 1000 = 150,000,000 km
Now we divide 150,000,000/11,000,000 = 13.6363636364 au.
Answer: all of them
Step-by-step explanation:
Answer:
31m + 21n
Step-by-step explanation:
