Answer:
5
Step-by-step explanation:
GJ/UT
10/2
5
Answer:
D (3,1)
Step-by-step explanation:
solving simultaneous equations
Arrange equations
2x+y=7
3x-4y=5
make y side cancell by addition by multiplying by 4 and 1 as shown
4{2x+y=7}
1{3x-4y=5}
8x+4y=28
3x-4y=5
11x=33
x=33/11=3
substitute for x=3 in 3x-4y=5
9-4y=5
4=4y
y=1
Kinda confused by this question but I'm betting yes. Might take a bit of effort to keep the ratio fluent as you paint this large area but yes, it's possible.
The distribution of the -4 was incorrectly put in as -4b when it should be 4b
Answer: 
Step-by-step explanation:
Given: 83 : 45 :: 72 : ?
Let unknown quantity (?) be x.
Now, x : y :: a : b

83 : 45 :: 72 : x

Hence, 