Answer:
This is curve sketching which is used in math
Step-by-step explanation:
we can see a graph plotting with the equation...of all sides
A*5+b*2=145
a +b =50 | * -2
5a +2b=145
-2a -2b = -100
----------------------
5a-2a = 145-100
3a= 45
a=45:3
a=15 questions are worth 5 p
b=50-15=35 questions worth 2 p
Answer:
6
Step-by-step explanation:
3k + 5 = 23
3k = 23 - 5
= 18
k = 18/3
= 6
<em>Here's your answer :)</em>
Answer:
x = -75
Step-by-step explanation:
x/-5=15
x = 15 x -5
x = -75
