Ernesto tried to determine the solution for the system of equations using substitution. His work is shown below.
2 answers:
Answer:
The answer is step 3
Step-by-step explanation:
It is because Ernesto didn't distribute correctly, he only distributed 3 to the y and not the 7.
The answer is Step 3: 3y + 7 _ 2y = 8.
Ernesto made a mistake in the step 3 because he did not multiply 3 and 7.
The correct order of steps is:
Step 1: x = y + 7
Step 2: 3(y + 7) - 2y = 8
Step 3: 3y + 3·7 - 2y = 8
Step 4: y + 21 = 8
Step 5: y = - 13
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Answer:
intercept
Step-by-step explanation:
a is a constant and x is the intercept
You would have to multiply 120 x 20 then divide by 8. I hope that helps you!
It's the answer D (63) since 63/3 = 21 and then 21-9 = 12
- 3/5
Step-by-step explanation:
1(y) = 1 x y
= 1 x (- 3/5)
= - 3/5
Answer:
22/100 -----> 11/50
Step-by-step explanation:
