ANSWER: a=12 b=15
Explanation: (look at work below)
4a + 1b = 63 (eq1)
5a + 3b = 105 (eq2)
-12a + -3b = -189 (subt. eq1 from eq2)
————————-
-7a = -84
a = 12
4(12) + 1b = 63 (plug in the a value)
48 + 1b = 63
b = 15
Answer:B
Step-by-step explanation: 113,000 - 71,500 = 41,500
The value of x,y, and z 85+ 84 right?
Answer:
Step-by-step explanation:
if you multiply 17x50 you get 850
next multiply 16x20 to get 320
last you add both of them to get your total of 1,170
1. distributive property
2. commutative property (the order of 8x and -24 is swapped)
3. reflexive property ((8-24) = -16; -16 is substituted for 8-24. I prefer "substitution property".)
4. commutative property (the order of 8x and -16 is swapped)
5. distributive property
