Answer:
There are 23 5-point questions and 17 1-point questions.
Step-by-step explanation:
there are M 5 point questions
And N 1 point questions
M + N = 40
A 40 question test has 132 possible points
5M + N = 132
We have a system of equations.
M + N = 40
5M + N = 132
Multiply both sides of the first equation by -1. Write the second equation below it. Add the equations.
-M - N = -40
+ 5M + N = 132
----------------------------
4M = 92
M = 23
Now substitute 23 for M in the first equation and solve for N.
M + N = 40
23 + N = 40
N = 17
There are 23 5-point questions and 17 1-point questions.
B=1.25 so i think im not so good with this but i try if its wrong nvr listen to me
Answer:
H
Step-by-step explanation:
As you can see the more shirt's that were bought the lower the price becomes per shirt.
Answer:
55
Step-by-step explanation:
substitute 2 into j
so do 18 x 2= 36
36+19=55
j=55
Anything less than 90, i hope this helps
