X + 5 = 3x - 1
x - 3x = -1 -5
-2x = -6
2x = 6
x= 6÷ 2
x = 3
80% of 210 is equal to 168.
Hi there,
Properties of Equality is two equations that have the same solution which are called equivalent equations. For example: 5+3=2+6 which all equal to 8.
In geometry, properties of Equality are the reflexive (2x=2x, a=a, b+1=b+1), symmetric (2a=3b then 3b=2a) and transitive property (if a+1=3 and 3=1-b, then a+1=1-b)
Hope this helped :)
Have a great day
2) 3 is the answer of your questions
Answer:
Step-by-step explanation:
Let the fund raised in dollars be represented by R.
Let the number of lawns aerated during the day be represented by l.
The team has decided to charge $35/lawn for city-sized lots. This means that for l lawns, the fund raised would be
R = 35l
Since they were able to aerate 26 lawns in one day and the rental cost for two aerating machines is $215, then the amount if money that they were able to raise is
(35 × 26) - 215
= 910 - 215 = $695
The amount of money that the team will lose if they were unable to aerate due to weather conditions is the rental cost for two aerating machines which is $215
The only way they could avoid this loss is by taking note of the weather before renting the machine.