<span>3x + y= 17 (a)
4x + 2 y = 20 (b)
Multiply (a) by 2:
6x + 2y = 34 (a)
4x + 2y = 20 (b)
make: (a) - (b)
2x = 14 -----> x =7
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Replace the value of x = 7 in one of anterior equation:
</span>3x + y= 17
3 x 7 + y = 17
21 + y = 17
y = 17 - 21
y = -4
Answer:
90° CCW
Step-by-step explanation:
The angle from C to the origin to C' is a right angle when measured counterclockwise (in the usual direction).
ΔA'B'C' is a rotation of ΔABC 90° CCW.
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This is fully equivalent to a rotation of 270° CW.
there are 9 plates and x slices on each plate so 9x
Answer:
Step-by-step explanation:
First you determine how much 15% of $7.06 is. ($1.06)
Then you subtract that from $7.06 which is $6.00.
Then you determine how much 25% of $6.00 is. ($1.50)
Then you subtract that off from $6.00, which gives you $4.50.
Final answer: $4.50
