Answer:
The answer is B.
Step-by-step explanation:
Its B because in the problem it says $12 per yard which means it would be 12y. The 40 Rupesh already had so just add it and it would be 12y+ 40. The key word "At least" results into the sign being greater than or equal to. So the final answer would be 12y+40
148.
<span>If the relationship is x+4 then
f(5)=5+4
f(5)=9
as an example
</span>
Answer:
Step-by-step explanation:
If y varies directly with x, it is:
Constant is -2, it means k= -2
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
Let's substitute the first equation into the second one.
- Multiply by 
and bring all the terms to one side.
I'll use my graphical calculator to solve this but you could factor:
(All rounded to 2 decimal places)
Now we can substitute these values into an equation for 
.
