Answer:
Step-by-step explanation:
When there is a ( + ) in front of an expression in parentheses, there is no need to change the sign.
That means the expression remains the same.
Just remove the parentheses
Collect like terms
⇒
Calculate the difference
⇒
Hope I helped!
Best regards!!
$16(4 shirts)= $64
5%=$64(0.05)=$3.20
Jamal's total is $67.20
Answer:
2n-12=7n-15
Step-by-step explanation:
I hope i did it right im sorry if i didnt! in the first sentence it tells you "twelve less than" therefore its telling you that you are going to be subtracting which automatically means that its not going to be the first thing you write down. You then continue reading and it tells you "2 times a number (n)" which is written as 2n because to things side by side like that signifies that you are multiplying. Then you have your equal sign which is self explanatory. and basically you follow the same reasoning as you did the first part and you end up with 7n-15 and the other half of your equation. I hope that helped!
BD is a angle bisector and Angle bisector theorem says
ratio of other sides of the triangle formed by bisector is equal
BA/AD=BC/CD
lets say AD is x so DC will be 4-x
3/x=4.5/4-x
x=1.6
AD=1.6units
so DC=4-x=4-1.6= 2.4 units
Answer:
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