Answer:
Ms. Powell paid around 33 cents for each cookie
Ms. Malley paid around 43 cents for each cookie
Ms. Powell had the better deal
Step-by-step explanation:
Divide the amount paid with the amount of cookies bought so 4 ÷ 12 = 0.3333... and 3.50 ÷ 0.4375...
I hope this helped!
Answer:
The absolute value is always positive no matter if there's a negative.
Step-by-step explanation:
Answer:

Step-by-step explanation:
We are using the formula I=PRT and calculating simple interest.

<em>I</em> is the interest, <em>P</em> is the principal or starting amount, <em>R </em> is the interest rate as a decimal, and <em>T</em> is the time in years.
We know that there is $1555.00 at 8% for 2 years. First, convert the interest rate to a decimal. Divide the rate by 100 or move the decimal place 2 spots to the left.
- 8/100 = 0.08
- 8. --> 0.8 --> 0.08
Now we know all the values:
Substitute the values into the formula.

Multiply.


The account earned $248.80 in interest, but the question asks for the total amount in the account. We must add the interest to the starting amount.


After 2 years, the savings account had <u>$1803.80</u>
<A + <C = 180
2x - 7 + x + 4 = 180
3x - 3 = 180
3x = 183
x = 61
<B = 2x + 3 = 2(61) + 3 = 125
Answer
<B = 125°
Let the length be x and the width be w
The perimeter will be:
2x+3w=1500
thus
3w=(1500-2x)
w=(1500-2x)/3
w=500-2/3x
The area will be:
A=x*w
A=x(500-2/3x)
A=500x-(2/3)x²
The above is a quadratic equation; thus finding the axis of symmetry we will evaluate for the value of x that will give us maximum area.
Axis of symmetry:
x=-b/(2a)
from our equation:
a=(-2/3) and b=500
thus
x=-500/[2(-2/3)]
x=375
the length will be 375 m
The width will be 250 m