Answer: 14 hours
Step-by-step explanation:
Let the number of hours of TV that Jamie watched be represented by x.
Since Roberto watched 5 more hours of tv than Jamie last week, therefore the number of hours of TV that Roberto watched will be: x + 5
Together, they watched a total of 23 hours of tv last week. Therefore,
x + (x + 5) = 23
2x + 5 = 23
2x = 23 - 5
2x = 18
x = 18/2
x = 9
Jamie watched 9 hours of TV
Therefore, Roberto watched x+ 5 = 9 + 5 = 14 hours
Since the equation is A= 1/2 times base times height, I did the base as 8 and the height as 5.
Answer:
210
Step-by-step explanation:
Equation 1) y=x+3
Equation 2) y=2x+5
Rearrange both equations so that (x) and (y) are on the same side.
1) -x+y=3
2) -2x+y=5
Subtract equations with each other.
x=-2
Plug in -2 for (x) in equation 1.
y=(-2)+3
Simplify.
y=1
(-2, 1)
~Hope I helped!~
Answer:
100 ft long and 100 ft wide
Step-by-step explanation:
The building area is (40 ft)(20 ft) = 800 ft², so the area of the entire plot is ...
9200 ft² +800 ft² = 10000 ft² = (100 ft)²
The plot is square, so its side length is 100 ft.
