Answer:
trapazoid
Step-by-step explanation:
Answer:
tons of high steel and
tons of low steel
Step-by-step explanation:
Let x be the number of tons of high grade steel and y be the number of tons ow low grade steel needed.
In x tons of high grade steel there are
tons of iron
tons of magnese
In y tons of low grade steel there are
tons of iron
tons of magnese
NASA orders 500 tons of steel, so

and specifies that it must be in the proportion 80% iron and 20% magnese, so

From the first equation,

Substitute it into the second equation:

Answer:
<h2>

</h2>
Step-by-step explanation:
u = kx + ух
First of all factorize x out at the right side of the equation
That's
u = x(k + y)
Divide both sides by ( k + y) to make x stand alone
That's
<h3>

</h3>
We have the final answer as
<h3>

</h3>
Hope this helps you
Answer:
129.5 Square feet is the correct answer.
Step-by-step explanation:
I am a 100% SURE of that.
Hope this helps....
Have a nice day!!!!
First of way to many questions, but Ill answer them
1) 5/9, 75/135 2) 5/11 3) 10/3 4) 13 quarts 5) 120 6) in 108 minutes
7) 3/4<33/40 8) 3/8<2/3<19/24