Hello from MrBillDoesmath
Answer: multiply each by 1.5 to get the next term.
Discussion: I noticed that 7.5 is 1.5 times 5 -- and 5 is the first number in the sequence. I wondered if that was the pattern so I used Calc to multiply 7.5 by 1.5 and got 11.25. (Looking good). Then I multipled 11.25 by 1.5 and got 16.875.
Regards,
MrB
Elliminateion
multiply first equation by -2 and add to 2nd equation
-4x-6y=4
<u>4x+7y=-6 +</u>
0x+1y=-2
y=-2
sub back
2x+3y=-2
2x+3(-2)=-2
2x-6=-2
2x=4
x=2
(x,y)
(2,-2)
Answer:
1: 
and the same, but its -3 instead of 3
2: x=9-3y
Answer:
its A & B, x<50
Step-by-step explanation:
atmost means till 50.
atleast means more than 50.
Answer:
C(x) = 7.5k + 2400 is the expense equation.
Step-by-step explanation:
The fixed cost per month = $2,400
Cost of producing each shoe = $7.5
Here, let k be the number of shoes produced per month .
So, the monthly expense
= Fixed Cost + (Number of shoes produced per month x Cost per shoe)
or, C(x) = $2,400 + ( k x $7.5)
or, C(x) = 7.5k + 2400 is the expense equation.
