Number one is D
number 2 is A
First, you want to establish your equations.
L=7W-2
P=60
This is what we already know. To find the width, we have to plug in what we know into P=2(L+W), our equation to find perimeter.
<span>60=2(7W-2+W) </span>
<span>Now that we only have 1 variable, we can solve. </span>
First, distribute the 2.
60=14W-4+2W
Next, combine like terms.
60=16W-4
Then, add four to both sides.
64=16W
Lastly, divide both sides by 16
W=4
To find the length, we plug in our width.
7W-2
7(4)-2
28-2
<span>L=26</span>
Answer:
$7.50
Step-by-step explanation:
75% of $10
=3/4×$10
=7.5
Simplifying Expressions Using the Properties of Exponents (Four Examples)Daniel Ozimek
Answer:267
Step-by-step explanation: You have to multiply 10*12(1 dozen =12)
do the same with 13 then add the totals together.
