Answer:
a) x^2 + y^2
b) 9-xy
Step-by-step explanation:
Here, we want to write the algebraic statements as expressions;
a) The sum of the squares of x and y
The square of x is x^2
The square of y is y^2
The sum of the squares is x^2 + y^2
ii) Product of x and y subtracted from 9
The product of x and y is x * y = xy
Subtracting these from 9, we have;
9-xy
Answer: x=80
Step-by-step explanation:
x/8=10
x=8*10
x=80
Maximum revenue happens when 950 sandwiches are sold. When more or less sandwiches are sold revenue decreases by a constant amount.
We are told that revenue decreased by $45. We can use this information to calculate the amount of sandwiches.
number_of_sandwiches = total_revenue_change / revenue_change_per_sandwich
number_of_sandwiches = $45 / $0.10
number_of_sandwiches = 450
Number of sold sandwiches is either 450 more or 450 less than the amount of maximum revenue.
Possible numbers of sold sandwiches are:
number = 950 - 450 = 500
number = 950 + 450 = 1400
<span>We need to use the distance formula for this problem.
d = sqrt[(x2 - x1)^2 + (y2 - y1)^2]
We need to find these values.
d = (52)^2 + (30)^2
Thus, these ships are approximately sqrt(3604) = about 60 miles apart.</span>
5/14 I found common denominators (8 12/14 and 5 7/14) I subtracted them and got 3 5/14 but the 3’s already there so it’s just 5/14.
