Mathematics, 17.07.2020 20:01 aileenf598
Ernesto tried to determine the solution for the system of equations using substitution. His work is shown below. In which step did Ernesto make the first error?x β y = 7
3x β 2y = 8
Step 1: x = y + 7
Step 2: 3(y + 7) β 2y = 8
Step 3: 3y + 7 β 2y = 8
Step 4: y + 7 = 8
Step 5: y = 1
Answers: 2
Mathematics, 21.06.2019 14:50
Polygon mnopq is dilated by a scale factor of 0.8 with the origin as the center of dilation, resulting in the image mβ²nβ²oβ²pβ²qβ². the coordinates of point m are (2, 4), and the coordinates of point n are (3, 5). the slope of is .
Answers: 2
Mathematics, 21.06.2019 15:00
Select the correct answer from each drop-down menu. rewrite the formula to find voltage. the formula for electrical power (p, in watts) is where v is the voltage in volts and r is the resistance in ohms. for a particular brand of water heater, r is 32 ohms and p is 0.5 watts. the formula to find v is , and the voltage at which the heater operates is volts.
Answers: 1
Ernesto tried to determine the solution for the system of equations using substitution. His work is...
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