Top equation, minus 10 both sides to get
3x-2y=-10
bottom equation, minus 4x both sides
5y-4x=8
-4x+5y=8
now elimiate y's
multiply top equation by 5 and bottom equaiton by 2 and add them together
15x-10y=-50
<u>-8x+10y=16 +</u>
7x+0y=-34
7x=-34
divide both sides by 7
x=-34/7
sub back
3x-2y=-10
3(-34/7)-2y=-10
(-102/7)-2y=-10
add (102/7) to both sides
-2y=-10+(102/7)
-2y=(-70/7)+(102/7)
-2y=32/7
divide both sides by -2, or times both sides by -1/2
y=-32/14
y=-16/7
(x,y)
(-34/7,-16/7)
whats the length and width of the figures?
Answer:
The other number is 5/9.
Step-by-step explanation:
B 6x - 3
help theres a character limit
Answer:
<u>1464 square kilometers</u>
Step-by-step explanation:
Understanding :
- Since it decreases by 4.25%, we can say that each year, the area is 95.75% of the previous year
- The function can be written as 1900(0.9575)ⁿ, where n is the number of years
Year 6 :
- 1900(0.9575)⁶
- 1900(0.77060655)
- <u>1464 square kilometers</u> (nearest square kilometer)
