Answer:
$5.65
Step-by-step explanation:
1.29 x 3 + 0.89 x 2= $5.65
:3
Answer:
(1/4, 3)
Step-by-step explanation:
Substitution is essentially where we write one variable in terms of another, substitute that into the other equation so that we are left with 1 variable, and then solve for that variable.
Here, the second equation already shows y written in terms of x: y = 12x. Substitute this into the first equation:
6 + 8y = 30
6 + 8 * (12x) = 30
6 + 96x = 30
96x = 24
x = 24/96 = 1/4
Plug this into any of the equations to solve for y:
y = 12x
y = 12 * (1/4) = 3
The answer is (1/4, 3). *Note that none of the answer choices matches this, which means that you may have copied the answer incorrectly.*
Answer:
-1.13
Step-by-step explanation:
Answer:
187
Step-by-step explanation:
2*89=178
178+2=180
180-63=117
117+70=187
Answer:
29
Step-by-step explanation: