Answer:
n=20
Step-by-step explanation:
5/10 equals 1/2 when simplified since 5÷5=1 and 10÷5=2
Half of 40 equals 40÷2 = 20 so n=20
Another way to do it is
Since the denominator is multiplied by 4 to get to 40
We must multiply 5 by 4 to get the numerator:
5×4=20
So n=20
<h3>
Answer: 12</h3>
Each angle of an equilateral triangle is 60 degrees
5x = 60
5x/5 = 60/5 ... divide both sides by 5
x = 12
What we know: one part of candy costs $6 per kg
another part of candy costs $4.50 per kg
To get a 15kg candy, lets add 6 and 4.5
6+4.5=10.5
Add 4.5 to 10.5
4.5+10.5=15
So, We need 2 kg of the $4.50 candy, and 1 kg of the $6.00 candy.
Answer:
PR = 5 because LP + PR = LR according to the Segment Addition Postulate, and 7 + 5 = 12 using substitution
Step-by-step explanation:
The naming of the segments suggests that point P is between L and R, so that ...
LP + PR = LR
This corresponds to the last choice.
_____
<em>Comments on the alternate interpretation</em>
On the other hand, if point L is between P and R, then the segments are PL and LR. The Segment Addition Postulate would tell you that ...
PL + LR = PR
The Reflexive Property of Congruence would tell you that PL = LP. The Substitution Property would tell you LP can be substituted into this equation, making it ...
LP + LR = PR
and by the commutative property, ...
LR + LP = PR.
Multiple properties of addition and congruence are involved with this interpretation, which more or less matches the third choice. That is, the simple explanation of answer choice 3, by itself, is insufficient to explain why the length of PR should be considered to be 19, not 5.
