Answer: you spent 250 hours during your cleanup.
you spent 150 hours painting
Step-by-step explanation:
Let x represent the number of hours that you spent during your cleanup.
Let y represent the number of hours that you spent painting.
you earn $8 an hour cleaning up and $12 an hour painting last summer and you earned $3800 . it means that
8x + 12y = 3800- - - - - - - - - -- 1
You worked a total of 400 hours. This means that
x + y = 400
Substituting x = 400 - y into equation 1, it becomes
8(400 - y) + 12y = 3800
3200 - 8y + 12y = 3800
- 8y + 12y = 3800 - 3200
4y = 600
y = 600/4 = 150 hours
Substituting y = 150 into x = 400 - y, it becomes
x = 400 - 150
x = 250 hours
No x does NOT equal 16. you would substitute x for 16 which gives you 16+12. That equals 28 not 30. The correct answer is x=18
Answer:
81×2=162
Step-by-step explanation:
81+81=162
you can add or do out the multiplication. or even do it in your head.
Answer:
1.411764706
Step-by-step explanation:
24/17=1.411764706
X=2y-6
Let's solve for y.
<span>x=<span><span>2y</span>−6
</span></span>Step 1: Flip the equation.
<span><span><span>2y</span>−6</span>=x
</span>Step 2: Add 6 to both sides.
<span><span><span><span>2y</span>−6</span>+6</span>=<span>x+6
</span></span><span><span>2y</span>=<span>x+6
</span></span>Step 3: Divide both sides by 2.
<span><span><span>2y/</span>2</span>=<span><span>x+6/</span>2
</span></span><span>y=<span><span><span>12</span>x</span>+3
</span></span>Answer: y=12x+3
