First we need to know both the formula of A and B.

The formula of A is
C = 5 + 0.25p
with C representing total cost and p representing the amount of checks.

The formula of B is
C = 6 + 0.15p
with C representing total cost and p representing the amount of checks.

To find the point where A and B cost the same, we solve the following equation:
5 + 0.25p = 6 + 0.15p

Collecting terms gives us
-1 = -0.1p

Now we have to divide by -0.1 and we get.
10 = p
p = 10

So our answer: after 10 checks both accounts cost the same amount of money. Answer A.

7 0

2 years ago

14. Cookies call for 2.25 cups of flour for every .75 cups of brown sugar. How much sugar would be needed for a batch using 5 cu

Arte-miy333 [17]

Answer:

i think it would be 12.4 sugar needed for a batch

8 0

2 years ago

The heat in the house is set to keep the minimum and maximum temperatures (in degrees Fahrenheit) according to the equation |x –

dmitriy555 [2]

$|x-72.5|=4 \\
x-72.5=-4 \ \lor \ x-72.5=4 \\
x=-4+72.5 \ \lor \ x=4+72.5 \\
x=68.5 \ \lor \ x=76.5$

The minimum and maximum temperatures in the house are 68.5°F and 76.5°.

5 0

2 years ago