Answer:
Contrapositive must be related
Answer: (11x6) -8
Step-by-step explanation: Since there are 11 bars in each of 6 boxes, there is 66 bars, since she eats 8 there a 5re8 granola bars left, so the actual expression would be (11x6) - 8.
Hope this helps! :)
Answer:
x = -10; y = 9
Step-by-step explanation:
(1) 7x + 5y = -25
(2) 5x + 3y = -23 Multiply (1) by 3
(3) 21x + 15y = -75 Multiply (2) by 5
(4) 25x + 15y = -115 Subtract (3) from (4)
4x = -40 Divide each side by 4
(5) x = -10 Substitute (5) into (2)
5(-10) + 3y = -23
-50 + 3y = -23 Add 50 to each side
3y = 27 Divide each side by 3
y = 9
x = -10; y = 9
Check:
(1) 7(-10) + 5×9 = -25
-70 + 45 = -25
-25 = -25
(2) 5(-10) + 3×9 = -23
50 + 27 = -23
-23 = -23
These (1,4,5) all give the right solution that the total number of students in Spanish club is 50.
1.)
(3/5)x = 30
4.)
(3/5)(5/3)x = 30(5/3)
5.)
x = 50
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