To know if a dilation is an expansion ( bigger) r a contraction ( smaller) ignore the negative sign.
If the number is larger than 1, it is an expansion, if the number is smaller than 1 it is a contraction.
-4 is an expansion
2.5 is an expansion
2/3 is a contraction
-3/4 is a contraction
Answer:
The are 8 dimes and 12 nickels
Step-by-step explanation:
1.We set n+d=20 because 20 is the total number of dimes and nickels in the jar.We have $0.05 n because for ever nickel,we earn $0.05.Adding this to the value of dimes,represented similarly by $0.1,then we set this to the amount of money we have in total,which is $1.40.
2.Subtract d from both sides of the first equation to get it by itself.Substitute-d for n in the second equation.The divide both sides by 0.5 to obtain the answer.
3.Substitute 8 in for d to obtain the value or n.
4/5 is greater because when you times it by 6 the numerator becomes 24 therefore it is greater
Answer: 15.75
Step-by-step explanation: To calculate, we do 45 x 35 / 100 which will equal 15.75
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ANSWER
EXPLANATION
The sum of the exterior angles of a polygon is 360°
The angles were given in terms of x.
We add all and equate to 360° to obtain.
This implies that,
