number = P
<span>Multiply the sum of a number and 3= P + 3 x ?
by the difference of 8 and a number = (P + 3) x (8 - p)
Answer = D</span>
After 45 minutes you will have painted 4*45=180 square feet.
so the total number of painted area, y, is:
y=180+x*(3+4) after the 45 minutes
where x is the number of minutes AFTER THE 45 minutes:
if y is 1000 then
1000=180+x*7
820=x*7
x=117.14
so 117 minutes, or one hour and 57 minutes.
Answer:
120 ft. sq
Step-by-step explanation:
You use the equation length times width to find the area. 15 x 8 = 120. This equation works for any rectangle
Each drill takes $44 in materials and $36 in labor. So it costs <u>the company</u> ($44+$36)= $80 to <u>MAKE</u> one drill. THEN they're ready to sell it.
At the same time, the company has to pay $4,000 just to <u>use the building</u> to make the drills.
I can see at least two different questions here:
Question #1). How much does it cost the company if they MAKE 330 drills in one month ?
Materials and labor: 330 x ($80) = $26,400
Rent the building space: $4,000
<em>Total for the month: $30,400</em>
<em></em>
Question #2). How many drills do they have to SELL just to pay back the amount they already spent to manufacture those drills ?
We can't answer that right now, because we don't know the PRICE they charge for each drill when somebody buys it.