Holt Algebra 1 Homework and Practice Workbook 1st Edition Chapter 1
Page 1 Problem 1 Answer
Given: Algebraic expression is 15−b
To Find Two ways to write the given algebraic expression in words.
Word expressions for 15 – b :
(1) b is subtracted from 15
(2) 15 is added to negative b
Thus, the two ways to write 15−b algebraic expression in words are
(1) b is subtracted from 15
(2) 15 is added to negative b
Page 1 Problem 2 Answer
Given: Algebraic expression is x/16
To Find: Two ways to write the given algebraic expression in words.
Word expressions for x/16:
(1) Divide x by 16
(2) Divide x by the square of four.
Thus, the two ways to write x/16 algebraic expression in words are
(1) Divide x by 16
(2) Divide x by the square of four.
Page 1 Problem 3 Answer
Given: Algebraic expression is 2t
To Find: Two ways to write the given algebraic expression in words.
Word expressions for 2t:
(1) “2 is multiplied by t”
(2) “the product of 2 and t”
Thus, the two ways to write 2t algebraic expression in words are
(1) “2 is multiplied by t”
(2) “the product of 2 and t”
Page 1 Problem 4 Answer
Given: Algebraic expression is 4y
To Find: Two ways to write the given algebraic expression in words.
Word expressions for 4y :
(1) “4 is multiplied by y”
(2) “the product of 4 and y”
Thus, the two ways to write 4y algebraic expression in words are
(1) “4 is multiplied by y”
(2) “the product of 4 and y”
Page 1 Problem 5 Answer
Given: Sophie’s math class has 6 fewer boys than girls, and there are ‘g’ girls.
To Find: Write an expression for the number of boys.
For expressing in mathematical form we have to take some variable for Sophie’s math class.
Let b & g represents the number of boys and girls in the math class respectively.
Then, according to the given information, we get b=g−8
Thus, the required expression for the number of boys in the math class is b=g−8
Page 1 Problem 6 Answer
Given: A computer printer can print 10 pages per minute.
To Find: Write an expression for the number of pages the printer can print in m minutes.
For expressing in mathematical form we have to take some variable and simplify according to given condition.
Given that, 10 pages /1 minute
Suppose, x number of pages a printer can print in m minutes.
⇒ Thus,10 pages /1 minute =x pages m minutes
⇒10=x/m
x=10m
Hence, the number of pages printer can print in ‘m’ minutes is : 10m
Page 1 Problem 7 Answer
Given: Expression st
To Find: Evaluate expression for r=8,s=2, and t=5
For evaluating the expression we have to put the given data in st and then simplify.
Given expression st put s=2, and t=5 then we get,
⇒st
=2(5)
=10
Thus, the value of st is 10
Page 1 Problem 8 Answer
Given: Expression s+t
To Find: Evaluate expression for r=8,s=2, and t=5
For evaluating the expression we have to put the given data in s+t and then simplify.
Given expression s+t
put s=2, and t=5 then we get,
⇒s+t
=2+5
=7
Thus, for s=2 and t=5 the value of s+t is 7
Page 1 Problem 9 Answer
Given: Expression r−t
To Find: Evaluate expression for r=8,s=2, and t=5
For evaluating the expression we have to put the given data in r−t and then simplify.
Given expression r−t
put r=8 and t=5 then we get,
⇒r−t
=8−5
=3
Thus, the value of r−t is 3
Page 1 Problem 10 Answer
Given: Expression r⋅s
To Find: Evaluate expression for r=8,s=2, and t=5
For evaluating the expression we have to put the given data in r⋅s and then simplify.
Given expression r⋅s
put r=8,and s=2 then we get,
⇒r⋅s
=8⋅2
=16
Thus, the value of r⋅s is 16
Page 1 Problem 11 Answer
Given: Expression t−s
To Find: Evaluate expression for r=8,s=2, and t=5
For evaluating the expression we have to put the given data in t−s and then simplify.
Given expression t−s
put s=2, and t=5 then we get,
⇒t−s
=5−2
=3
Thus, the value of t−s is 3
Page 1 Problem 12 Answer
Given: Paula always withdraws 20 dollars more than she needs from the bank.
To Find: Write an expression for the amount of money Paula withdraws if she needs d dollars.
For expressing in mathematical form we have to take some variable for withdrawal amount.
Let the withdrawal be denoted by w and dollars by d then according to given condition we get,w=d+20
Thus, the expression for the amount of money Paula withdraws if she needs d dollars is w=d+20
Page 1 Problem 13 Answer
Given: Paula always withdraws 20 dollars more than she needs from the bank.
To Find: The amount of money Paula withdraws if she needs 20,60, and 75 dollars.
For finding the amount of money Paula withdraws if she needs 20,60, and 75 dollars we have to put 20,60, and 75 dollars in w=d+20
From first part we have w=d+20
Now,
for d=20
we get,
w=d+20
∴w=20+20
∴w=40
for d=60
we get,
w=d+20
∴w=60+20
∴w=80
for d=75
we get,
w=d+20
∴w=75+20
∴w=95
Thus, the amount of money Paula withdraws if she needs 20,60, and 75 dollars are 40,80 and 95 respectively.