2.1x + 4.2y = 14.7 is the same as x + 2y = 7 (divide both sides by 2.1)
-5.7x-1.9y=-11.4 is the same as 3x + y = 6 (divide both sides by -1.9)
Rearrange the first equation to get x = 7 - 2y and substitute into the second equation, 3(7 - 2y) + y = 6, 21 - 6y + y = 6, 5y = 15, y = 3
Substitute y = 3 into the first equation x + 2(3) = 7, x = 1
x = 1 and y = 3
Answer:
The measure of the current running through the heater is: 10 Amps
Step-by-step explanation:
Since power (which is measured in watts) is defined as the product of the voltage applied times the current that runs the device, we can use this formula to solve for the unknown current (I) in the problem. Also since the units of power given are "watts", and the voltage is given in "volts", the current will also result in SI units, that is Amperes (Amps):
16 weeks. $300. hope its right but sorry if wrong
Answer:
-15/2
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
C(4) = -7 + 6(4-1)
C(4) = -7 + 6 x 3 =
C(4) = -7 + 18
C(4) = 11
Hope that helps!