Answer:
Step-by-step explanation:
x(x+2) = 143
:::::
x² + 2x - 143 = 0
x = [-2 ±√(2²-4(1)(-143))]/[2(1)] = 11, -13
:::::
11 and 13
:::::
-13, -11
Answer: See explanation
Step-by-step explanation:
7. 300-117= 183 square inches
8. 346.185-153.86= 192.325 square inches
10. 100.46-64=36.46 square inches
The discount is 40% that means the discount is 40% off from the original price. Or we could write the discount as below.
discount = 40% × original price
Find the original price
original price = sale price + discount
original price = 36 + 40% original price
100% original price = 36 + 40% original price
100% original price - 40% original price = 36
60% original price = 36
0.6 original price = 36
original price = 36/0.6
original price = 60
The original price of the headphone is $60
Answer:
a
Step-by-step explanation:
because they are vertical angles they are equal to each other so we write the equation 132=5x+7
step 1 subtract each side by 7
125=5x
step 2 divide each side by 5
x=25
To do this follow the ADAM steps:
<u>A</u>dd 3 and 2 together = 5
<u>D</u><u />ivide 30 by 5 = 6
<u>A</u>nd...
<u>M</u>ultiply each part of the original ratio by 6. 3x6 = 18 and 2x6 = 12
The answer is 18:12 I think... if that's what you were looking for. :P
