Answer:
there is no pics any problem?
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
Answer:
5.25 hours
Step-by-step explanation:
One week = 7 days
7 x 0.75 = 5.25 Hours
Hope this helps, mark as brainliest :)
23/45 would be the most simplified form of 276/540<span />
2 / 3 ( y + 57 ) = 178
2( y + 57 ) / 3 = 178
2*y + 2 * 57 / 3 = 178
2y + 114 / 3 = 178
3*(2 y + 114 ) / 3 * ( 178)
2 y + 114 = 534
2y = 534 - 114
2 y = 420
y = 420 / 2
y = 210
hope this helps!
