Answer:
135=15m+25 OR 15m+25=135
Step-by-step explanation:
To set this equation up you want to look at key words. It states that "Karina now saved $135" in meaning her total saved. Now it states she STARTED the account with 25 so that would be added to the amount she adds per month (which is $15). The equation can be set up as 15m+25=135. 15m because m stands for every month she added $15, 25 because she started the account with 25 and 135 because that's her total after the several months.
Answer:
B
Step-by-step explanation:
<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:
2
Step-by-step explanation:
Method- 56-25=31-25=6
I subtracted 25 until I cant no more so I only did it 2 times so 2 quarters are in the piggy bank.
Quarters-2
Then since the remainder was 6 that means there was only 1 penny and 1 nickel.
Pennies- 1
Nickels-1
Answer) n=-\frac{5\sqrt{3}i}{6}\approx -0-1.443375673i