Answer:
Step-by-step explanation:
-5x + 7y = -19
6x - 2y = 10
-10x + 14y = -38
42x - 14y = 70
32x = 32
x = 1
-5 + 7y = -19
7y = -14
y = -2
(1, -2)
Answer:
McDonald’s Quarter Pounders = 67 mg of cholesterol
Burger King Whoppers = 87 of cholesterol
Step-by-step explanation:
McDonald’s Quarter Pounders = m
Burger King Whoppers = b
2m + 3b = 395
3m + 1b = 288
3m + b = 288
b = -3m + 288
2m + 3b = 395
2m + 3(-3m + 288) = 395
2m - 9m + 864 = 395
- 7m + 864 = 395
- 7m/7 = -469/7
-m = -67
-m/-1 = -67/-1
m = 67
2m + 3b = 395
2(67) + 3b = 395
134 + 3b = 395
3b = 395 - 134
3b = 261
3b/3 = 261/3
b = 87
Check: m = 67; b = 87
2m + 3b = 395
3m + 1b = 288
2m + 3b = 395
2(67) + 3(87) = 395
134 + 261 = 395
395 = 395
3m + 1b = 288
3(67) + 1(87) = 288
201 + 87 = 288
288 = 288
(Probs too late but welp :p)
Answer:
-15
Step-by-step explanation:
opposite means negative, hence:
-36/6+-9
-6+-9=-15
Hope this helps!
1.6 min. per lap
All you have to do is divide 20 by 12.5
The answer is C an example is 20% of $20 is 4, so you would lose the zero and double the 2 to get 4