Answer:
还是说好啥好我和我姐我就忘记忘记娃娃机忘记看取卡
Step-by-step explanation:
哼哼唧唧你就那么慢慢看
Answer:
x = 40
Step-by-step explanation:
Simplifying
0.25x = 10
Solving
0.25x = 10
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '0.25'.
x = 40
Simplifying
x = 40
hope this helps
Answer:
2x -43
Step-by-step explanation:
Distribute 2 to into the parenthesis: 2 * x and 2 * -6
2x + -12 - 31
Combine like-terms: -12 + - 31 = -43
2x -43
IF you need the equation completely simplified, I bEliVe you would be able to divide by 2 to get it: x - 21.5
<span>Let x = dollar increase in price
Let y = fewer number of pairs sold
Since 2 fewer shoes are sold for each 1 dollar (factor of 2)
y = 2x
Revenue = Number of shoes sold * Price charged per shoe
Number of shoes sold = 200 - y = 200 - 2x
Price charged per shoe = $60 + $x
Revenue = (200 - 2x)(60 + x) = -2x^2 + 200x - 120x + 12000
Revenue = -2x^2 + 80x + 12000
In a quadratic equation, Revenue is maximized when x = -b / 2a. In this case:
x - -80 / (2*-2) = $20
Price charged per show = $60 + $x = $60 + $20 = $80.
Maximum revenue = -2x^2 + 80x + 12000 (evaluated at x = $20)
Maximum revenue = -2(20^2) + 80*20 + 12000 = $12800</span>
Answer:
View the explanation
Step-by-step explanation:
The sine of an angle is equal to the cosine of that angle minus 90 degrees, and vice versa. Since 65=90-25, the cosine of 25 is equal to the sin of 65. If this is unclear please PM me or comment, and I can help more!