Answer:
There is a 90% decrease
Step-by-step explanation:
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Answer:
Step-by-step explanation:$500.00 20-10%
The answer would be 7z-17y+24
Explanation
========================================================
The problem is simplify 24-4(5y-6z)+3y-7z
We can focus on the smaller important parts first which would be to multiply -4(5y-6z). A common mistake is that people always forget to multiply with the negative sign.
We multiply -4(5y) + -4(-6z) ===> -20y + 24z
We now have...
24-20y+24z+3y-7z
We combine any like terms and we get...
17z-17y+24
<em>I hope this helps : )</em>
X=y+3
<span>-5x-4y=<span>30
-------------------
Substitute y + 3 for x in </span></span>-5x-4y=30
<span><span>-5<span>(y+3)-</span></span>4y</span>=<span>30
</span>-9y-15=<span>30
</span>----------------------------
Add 15 to each side
<span><span>-9y-15</span>+15</span>=<span>30+<span>15
-9y = 45
</span></span>-----------------------------------
Divide each side by -9
-9y ÷ -9 = 45 ÷ -9
y = -5
Now we solve for x
====================================================================
Substitute -5 for y in x = y + 3
x=-<span><span>5</span>+<span>3
</span></span>x = -2
----------------------
(-2,-5) is your answer
Answer:
Because a prism has a flat-ish side, but a sphere is only circular. Also a sphere would be harder to control. (I think)
