A security company transports money from stores to banks. One day, a security guard accidentally leave one bag on the back bumber of the security truck. At some point, the bag falls off the truck and is picked up by a lucky driver. The security company knows that the bag had contained only $100 bills, $500 bills, and $1,000 bills. In total, there were 1,793 bills in the bag worth a total of $846,700. There were 67 more $500 bills than $100 bills in the bag. find how many of each bill was in the missing bag

.

step-by-step explanation:

.

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

80 the answer is 80

step-by-step explanation:

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -