Answer:
Step-by-step explanation:
33.414−33.36
=33.414−33.36
=33.414+−33.36
=0.054
Answer:
109
Step-by-step explanation:
AB = 180° ( straight line )
X = 180 - 42 - 29
= 138 - 29
= 109
THe given statement is " the measures of an exterior angle and the adjacent interior angle add up to 360 because they form a linear pair " .
And in a linear pair, the sum of the measures of exterior angle and adjacent interior angle is 180.
But in the statement, it is given that the sum is 360 degree.
So the given statement is false .
Answer: She has 21 lira coins.
Step-by-step explanation:
Given, Laura collects old foreign coins. She has 83 coins in total. She has 53 lira and drachma coins. She has 51 lira and peseta coins.
Let x = the number of lira coins.
y= the number of drachma coins.
z= the number of peseta coins.
Then, as per given, we have
x+y+z=83 (i)
x+y=53 (ii)
x+z=51 (iii)
From (ii) and (iii)
y=53-x
z=51-x
Put these values in (i) , we get
x+(53-x)+(51-x)=83
⇒ x+53-x+51-x=83
⇒ 104-x=83
⇒104-83=x
⇒x= 21
Hence, she has 21 lira coins.
I did 12x9 and I believe it’s A but if I’m wrong I apologize but it should be right !