How do I use elimination process when solving two variable equations?
1 answer:
Solve simultaneously:
<span>15x-8y=52 and
6x+14y=38
</span>
Let's solve this system thru elimination by addition/subtraction:
Let's get rid of the x terms.
To do this, mult. the first eqn. by -6 and the second by 15. (This is not the only way in which we can do this!!) We get
-90x + 48y = -312
90x +210y = 570
--------------------------
Add all 3 columns together. We end up with:
258y = 258, so y = 1. You can find x by subst. 1 for y in either of the given equations.
If you'd like more help, please be specific about what you want.
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If the sum is an odd number than the answer would be 9.
TBH IDK
The perimeter is 2b+2h.
2(x+4)+2(x-6)=88
2x+8+2x-12=88
4x-4=88
4x=90
x=22.5
Any questions?
Answer:
use multiple the numbers to get the co rrect
Step-by-step explanation:
32×6
=192
29×7=203
Answer:
D) y=5x+20
Step-by-step explanation:
We know that
surface area of sphere=4*pi*r²
r=√[surface area/(4*pi)]
for surface area=27648
r=√[27648/(4*3)]-------> r=√2304-----> r=48 units
volume of a sphere=(4/3)*pi*r³-----> (4/3)*3*48³---> 442638 units³
the answer is
<span>442368</span>
