Answer:
x²+y²=4
Step-by-step explanation:
x²+y²=4
=2ab - 20a -5a +10 -ab - b
= ab - 25a - b + 10
Answer:
Cost of the first house : $480,000
Cost of the second house : $320,000
Step-by-step explanation:
An estate agent has three houses for sale. The prices of the houses were
in the ratio 6:4:3 and the cheapest house was priced at $240 000. What
were the prices of the other two houses? (SHOW WORKING)
The prices of the house has a ratio of
6:4:3
Sum total = 6 + 4 + 3 = 13
Cheapest house = $240,000
The sum total cost of the 3 houses = x
x is calculated as:
= 3/13 × x =$ 240,000
= 3x = $240,000 × 13
x = $240,000 × 13/3
x = $1,040,000
The Cost of the first house =
6/13 × $1,040,000
= $480,000
Cost of the second house
= 4/13 × $1,040,000
=$320,000
Therefore,
Cost of the first house : $480,000
Cost of the second house : $320,000
Answer:
-3+(-6)+4=-5
Step-by-step explanation:
-3 drops 6 degrees,now -9 degrees then it rises 4 degrees which makes it now -5 degrees.
10/4 I think
And simplified would be 5/2