Transcript Writing expressions

WRITING EXPRESSIONS
1. Evaluate 2[54
2. Evaluate
5x
x+2
(42 + 2)].
when x = 3.
3. Eight students each ordered 2 drawing kits and
4 drawing pencils. The expression 8(2k + 4p) gives
the total cost, where k is the cost of a kit and p is the
cost of pencil. Find the total cost if a kit costs $25
and a pencil costs $1.25.
ADDITION
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Sum
Plus
Total
More than
Increased by
SUBTRACTION
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Difference
Less than
Minus
Decreased by
MULTIPLICATION
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Times
Product
Multiplied by
Of
DIVISION
• Quotient
• Divided by
• Divided into
Verbal Phrase
a. 4 less than the quantity 6 times a number n
b. 3 times the sum of 7 and a number y
c. The difference of 22 and the square of a number m
Expression
1. Translate the phrase “the quotient when the
quantity 10 plus a number x is divided by 2” into an
expression.
Tips
You work with 5 other people at an ice cream stand. All the workers put
their tips into a jar and share the amount in the jar equally at the end of
the day. Write an expression for each person’s share (in dollars) of the
tips.
1. Write an expression for the phrase: 4 times the
difference of 6 and a number y.
2. A museum charges $50 for an annual membership
and then a reduced price of $2 per ticket. Write an
expression to represent the situation. Then find the
total cost to join the museum and buy 9 tickets.
Verbal Sentence
Equation or Inequality
a. The difference of twice a
number k and 8 is 12.
b. The product of 6 and a number
n is at least 24.
c. A number y is no less than 5 and
no more than 13.
1.
Write an equation or an inequality: The quotient of a
number p and 12 is at least 30.
Check whether 3 is a solution of the equation or inequality.
Equation/Inequality
a. 8 – 2x = 2
b. 4x – 5 = 6
c. 2z + 5 > 12
d. 5 + 3n ≤ 20
Substitute
Conclusion
Check whether the given number is a solution of the
equation or inequality.
2. 9 – x = 4; 5
3. b + 5 < 15; 7
4. 2n + 3 > 21; 9
Mountain Biking
The last time you and 3 friends went to a mountain
bike park, you had a coupon for $10 off and paid $17
for 4 tickets. What is the regular price of 4 tickets? If
you pay the regular price this time and share it
equally, how much does each person pay?
TRANSLATE INTO AN EXPRESSION,
EQUATION, OR INEQUALITY
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7 less than a number y
5 more than a number t
Twice a number k
3 less than twice a number n is 12.
The product of 5 and a number k is no more than 30