For the second one it should be 12 or -12
Answer:
b. comets
Step-by-step explanation:
Your answer is the commutative property
Hope I helped
best of luck :)
Hello!
Let's write this as a system of equations.
L=3w
wL=432
Let's plug in our value for L into the second equation, and solve for w.
w(3w)=432
3w²=432
w²=144
w=12
Now, let's plug our w value into the first equation.
L=3(12)
L=36
Therefore, the length is 36 and the width is 12.
I hope this helps!
Answer:
C.) 21
Step-by-step explanation:
d = 22.5n + 27.5
Where d is the total amount of money earned and n is the number of items sold
Substitute:
500 = 22.5n + 27.5
We can substitute 500 for d because 500 is the total amount of money Kathryn wants to earn
Solve:
500 = 22.5n + 27.5
Subtract 27.5 on both sides:
500 = 22.5n + 27.5
-27.5 -27.5
472.5 = 22.5n
Divide by 22.5 on both sides:
472.5 = 22.5n
/22.5 /22.5
21 = n
Therefore, Kathryn must sell 21 items to make $500.
