3x+5=2x+6
-2x -2x
1x+5=6
-5 -5
X=1
3(1)+5=8
2(1)+6=8
Answer: A.) 58 cm
explanation: just took it on edge :))))
Answer:
R: (16, 2)
Step-by-step explanation:
Let (x, y) be the point R
(x - 10)/2 = 3 and (y + 12)/2 = 7
x - 10 = 6 y + 12 = 14
x = 16 y = 2
R: (16, 2)
Answer:
40 lb of Type A
Step-by-step explanation:
3 pounds of Type B and 1 pound of Type A will give 4 pounds of mix at a cost of ...
3($4.65) +($5.95) = $19.90
Then $796 is the cost equivalent of 796/19.90 = 40 times that 4-lb mix. Since each instance of that 4-lb mix has 1 lb of Type A, $796 worth of blend has 40 lb of Type A coffee.
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<em>Additional comment</em>
If you'd like to do this using a variable, you can let 'a' represent the amount of Type A coffee used. Then (3a) is the amount of Type B, and the total cost is ...
5.95a +4.65(3a) = 796
19.90a = 796 . . . . . . . . simplify
a = 796/19.90 = 40 . . . as above
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There will be 120 lb of Type B coffee in that amount of blend.
Answer: The hens will lay 42 eggs