since these two angles are the same, we can write down following equation:
70=x+20
then x = 50
Subsitute in all to see which ones have tthose solutions
subsitute 3 for x and 9 for y
A works
B is false
C is false
D is true
E is false
F is false
answer is A and D
8 • 8 = 64%
400 • 64% = 256
400 - 256 = 144
Reece’s initial deposit was $144.
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#2 Is weird due to the fact that it declined but we will solve it anyways.
$66 lost after 11 years.
66 / 11 = $6 lost per year
6 • 100 / 550 = -1.09% negative simple interest rate per year.
Answer:
8 and 9
Step-by-step explanation:
From the question we are given;
- The product of two positive consecutive number is 72
We are required to determine the integers;
- We need to know that the difference between two consecutive integers is 1
Assuming that the smaller integer is x
Then the other integer is x+1
Therefore;
x(x+1) = 72
x² + x = 72
Rearranging in quadratic manner;
x² + x - 72 =0
Solving quadratically, using factor method;
Product = -72x
Sum = x
Numbers = 9x and -8x
Thus;
x² + 9x -8x - 72 =0
x(x+9) - 8(x+9) = 0
Then;
(x-8)(x+9) =0
Hence, x-8 = 0 or x+9 =0
Therefore, x = 8 or x = -9
We take, x = 8 (positive integer)
Hence, the required integers are 8 and 9
The correct answer is 11.