7th Grade Math › Expressions & Equations
If a server at a restaurant gets a tip on a bill of
, then what will be the amount of the tip?
The first step to solving this problem is determining what operation we are going to use.
Think:we know that the tip is going to be of
. The keyword "of" gives us a clue and indicates that we are going to multiply.
As we have learned in previous lessons, we need to convert our percentage into a decimal before we are able to multiply:
Next, we can perform the multiplication operation and find the tip:
The server's tip will be
If a server at a restaurant gets a tip on a bill of
, then what will be the amount of the tip?
The first step to solving this problem is determining what operation we are going to use.
Think:we know that the tip is going to be of
. The keyword "of" gives us a clue and indicates that we are going to multiply.
As we have learned in previous lessons, we need to convert our percentage into a decimal before we are able to multiply:
Next, we can perform the multiplication operation and find the tip:
The server's tip will be
Billy makes a week in allowance plus
for each lawn that he mows. This week Billy wants to make over
. Select the inequality for the number of lawns he needs to mow.
We know that Billy needs to make more than between his allowance and the lawns that he mows. This means our inequality should include
Also, since Billy will make per lawn, that means we need to multiply
by the number of lawns he needs to mow,
:
So far we have the following:
Next, we know that he makes each week, on top of what he makes mowing each law.
This means we need to add the to the
When we put all of these pieces together, we will get the following inequality:
Which of the answer choices is equivalent to the following expression:
In order to answer this question, we need to write the given expression is standard form.
First, we will need to use the distributive property, which tells us to multiply each component inside the parenthesis by the value outside the parenthesis. In this case we will multiply by the and the
by the following fraction:
For the variable ,
For the number ,
Next, we put our products together:
This expression is considered to be simplified because we are not able to perform any other operations on its constituent components.
In other words, we can't add the to
because the rules of operations tell us that these are unlike terms due to the presence of the variable,
, in the enumerator and we cannot add unlike terms.
Write the following as a mathematical inequality:
A number is less than or equal to three times the sum of another number and five
Write the following as a mathematical inequality:
A number is less than or equal to three times the sum of another number and five.
Let's begin with
"A number" let's call it x
"...is less than or equal to..."
So far we have:
Now,
"...three times..."
"...the sum of another number and five."
So, all together:
Billy makes a week in allowance plus
for each lawn that he mows. This week Billy wants to make over
. Select the inequality for the number of lawns he needs to mow.
We know that Billy needs to make more than between his allowance and the lawns that he mows. This means our inequality should include
Also, since Billy will make per lawn, that means we need to multiply
by the number of lawns he needs to mow,
:
So far we have the following:
Next, we know that he makes each week, on top of what he makes mowing each law.
This means we need to add the to the
When we put all of these pieces together, we will get the following inequality:
If a server at a restaurant gets a tip on a bill of
, then what will be the amount of the tip?
The first step to solving this problem is determining what operation we are going to use.
Think:we know that the tip is going to be of
. The keyword "of" gives us a clue and indicates that we are going to multiply.
As we have learned in previous lessons, we need to convert our percentage into a decimal before we are able to multiply:
Next, we can perform the multiplication operation and find the tip:
The server's tip will be
Which of the answer choices is equivalent to the following expression:
In order to answer this question, we need to write the given expression is standard form.
First, we will need to use the distributive property, which tells us to multiply each component inside the parenthesis by the value outside the parenthesis. In this case we will multiply by the and the
by the following fraction:
For the variable ,
For the number ,
Next, we put our products together:
This expression is considered to be simplified because we are not able to perform any other operations on its constituent components.
In other words, we can't add the to
because the rules of operations tell us that these are unlike terms due to the presence of the variable,
, in the enumerator and we cannot add unlike terms.
If a server at a restaurant gets a tip on a bill of
, then what will be the amount of the tip?
The first step to solving this problem is determining what operation we are going to use.
Think:we know that the tip is going to be of
. The keyword "of" gives us a clue and indicates that we are going to multiply.
As we have learned in previous lessons, we need to convert our percentage into a decimal before we are able to multiply:
Next, we can perform the multiplication operation and find the tip:
The server's tip will be
Write the following as a mathematical inequality:
A number is less than or equal to three times the sum of another number and five
Write the following as a mathematical inequality:
A number is less than or equal to three times the sum of another number and five.
Let's begin with
"A number" let's call it x
"...is less than or equal to..."
So far we have:
Now,
"...three times..."
"...the sum of another number and five."
So, all together: