D because 12-(-17) is 12+17. 2 negatives next to each other become a positive.
the
complete question in the attached figure
Part A
we know
price poster boards----------- > $0.75
let
p------------- > number of poster boards
q------------- > money spends on poster boards----------> $2.25
q=p*0.75---------> p=q/0.75=2.25/0.75=3
the answer part A is 3
Part B
Let
x-------------- >number of paint brushes------------ > $0.95
y-------------- >number of jar of paint ------------ > $0.99
we know
0.95x+0.99y=4.87
using a graph tool
see the attached figure
the solution is the line shown in the graph
the solution must be a pair of whole numbers, <span>the only pair that meets that condition is the point (2,3)
x=2-------------- ></span>number of paint brushes
y=3-------------- >number of jar of paint
Answer:
1.6 km in a mile
Step-by-step explanation:
that's the anwer
Since the first equation already gives you y, substitute Y for 4x in the second equation.
y=4x
x+y=5
x+(4x)=5
5x=5
x=1
Now that you know x, plug in x for 1 in the first equation.
y=4(1)
y=4
Answer: (1,4)
60°, 120° and 180° are the angles at which it will map onto itself.