pauls car is 16 feet long. He is making a model of his car that is 1/6 the actual size. What is the length of the model
1 answer:
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9514 1404 393
Answer:
(x, y) = (-2.5, -4)
Step-by-step explanation:
Since you are given an expression for y, it is convenient to substitute that into the second equation.
2x -3(6x +11) = 7
2x -18x -33 = 7
-16x = 40 . . . . . . add 33
x = -40/16 = -2.5
Using the equation for y, we find ...
y = 6(-2.5) +11 = -15 +11 = -4
The solution is (x, y) = (-2.5, -4).
Answer:
1275
Step-by-step explanation:
The natural numbers 1, 2, 3, 4, ...... , 49, 50
The terms of natural numbers are the terms of an arithmetic sequence.
The sum to n terms of an arithmetic sequence is
• =
[2a + (n- 1)d ]
where a is the first term and d the common difference
here a = 1, d = 1 and n = 50, hence
=
[ 2 + (49 × 1) ]
= 25(2 + 49) = 25 × 51 = 1275