Answer:
x = 10
y = 6
Step-by-step explanation:
Multiply second equation with -1 and then add it up with first equation
(-1)*(6x - 7y) = 18
-6x + 7y = -18
6x - 6y - 6x + 7y = 24 - 18 add like terms
y = 6 to find the value of x use this information
6x - 6y = 24 replace y with 6
6x - 6*6 = 24
6x - 36 = 24 add 36 to both sides
6x = 60 divide both sides by 6
x = 10
The answer is the last choice, 8x.
The expression to represent the problem would be x+8; Where x is the unknown amount of orders received on Thursday, and 8 is the amount received on Friday.
Combined, the total would be 8x.
x+8=8x
Answer:
1. C
2. UNKNOWN
3. (x-4)(x-2)
4. 5, -7
5. vertex=(3,4)
minimum value=4
6. UNKNOWN
7. 5/3
8. D
9. C
Step-by-step explanation:
idk may be right
I think the range is the set of ordered pairs
Answer:
(a, b) = (-8, -29)
Step-by-step explanation:
The two relations can be written as the equations ...
a - b = 21
5a -2b = 18
Subtracting 2 times the first equation from the second, we have ...
(5a -2b) -2(a -b) = (18) -2(21)
3a = -24 . . . . . simplify
a = -8 . . . . . . . divide by 3
Substituting into the first equation, we have ...
-8 -b = 21
-b = 29 . . . . . . add 8
b = -29 . . . . . . multiply by -1
The values of a and b are -8 and -29, respectively.
