Answer:
x = 21/8
Step-by-step explanation:
Step 1: Write equation
x - 11 = 3 - 7(x - 1)
Step 2: Solve for <em>x</em>
<u>Distribute -7:</u> x - 11 = 3 - 7x + 7
<u>Combine like terms:</u> x - 11 = 10 - 7x
<u>Add 7x on both sides:</u> 8x - 11 = 10
<u>Add 11 on both sides:</u> 8x = 21
<u>Divide both sides by 8:</u> x = 21/8
Answer:
C. Biased, because she only asked students on honor roll.
Step-by-step explanation:
Since Mrs. Gilbert's goal was to find how many students that spent >4 hours and not how many students that earned Honor Roll that spent >4 hours, the data is biased. Choose C.
Answer:
x = 3
Step-by-step explanation:
Write equation.
4x + 6 = 18
Subtract 6 from both sides.
4x = 12
Divide 4 to get x alone.
x = 3
Answer:
P371,639.507
Step-by-step explanation:
First year: 70,000
Second year: 72,100
Third year: 74,263
Fourth year: 76,490.89
Fifth year: 78,785.6167
If you plus them all the total is 371,639.507