The equation that matches the given situation is
. So, after two moves, Eric's elevation changed
meters above.
We know that in mathematics, subtraction means removing something from a group or a number of things. What is left in the group gets smaller when we subtract. The minuend is the first element we use. The subtrahend is the part that is being removed. The difference is the portion that remains after subtraction.
Assume that "negative" means climbing down and "positive" means climbing up. We must locate the elevation change in this area.
Given that Eric climbed straight down
meters. So we can write
.
Again Eric climbed straight up
meters. So, we can write
.
Then the change = 
=
=
=
=
=
=
=
Therefore, the equation that matches the given situation is
. So, after two moves, Eric's elevation changed
meters above.
Learn more about subtraction here -
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You are doing 133 divided by 6 to give you 55
Answer: 6
Step-by-step explanation:
The number of nine-players team= 21 teams.
The number of ten-players team= 5 teams.
<u>Step-by-step explanation:</u>
<u>step 1:</u> The total players signed up for a volleyball league= 118 boys+121 girls= 239 players.
<u>step 2:</u> The coach first makes a 9 players team= 239-9= 230 members
In this stage, the number of 9 players-team is one.
<u>step 3:</u> The remaining 230 players cannot be divided equally into 9 players, since 230 is not divisible by 9.
<u>step 4:</u> Find the number within 230 that is divisible by 9 as a whole. Check for easy number (9*20= 180 is within 230)
Therefore, 230-180= 50 players are remaining.
In this stage, the number of 9 players-team= 1+20= 21 teams with 9-players.
The number of 10 players-team= 50 players/10= 5 teams with 10-players.