Answer:
see explanation
Step-by-step explanation:
the equation of a circle centred at the origin is
x² + y² = r² ( r is the radius )
(11)
- 81 + x² = - y² ( add y² to both sides )
- 81 + x² + y² = 0 ( add 81 to both sides )
x² + y² = 81 ← in standard form
with centre = (0, 0 ) and r = 
= 9
(12)
y² + x² - 196 = 0 ( add 196 to both sides )
x² + y² = 196 ← in standard form
with centre = (0, 0 ) and r = 
= 14
In order to get 10 pizzas and about 90 cupcakes is to spend roughly 250$ but u could cut back on pizzas.
Answer:
90 and 8
Step-by-step explanation:
The question is : the sum of two numbers is 98 and their difference is 82 find the two numbers
Let two numbers are x and y.
Sum of two numbers is 98
x+y = 98 ....(1)
The difference of two numbers is 82.
x-y=82....(2)
Adding equation (1) and (2) we get :
x+y+x-y=98+82
2x=180
x=90
Put the value of x in equation (1)
90+y = 98
y = 8
Hence, the two numbers are 90 and 8.
15/20
convert to a decimal
0.75
multiply 0.75 by 100 to convert to a percentage
0.75 * 100
simplify 0.75 * 100
your answer is 75%
Answer:
140
Step-by-step explanation:
1. 1,000x0.07=70
2.70x2 years=140
3. 140
I hope this was helpful! I have no idea if I got the right answer but goodluck!
