Read and analyze each item. Write the letter of the correct answer on the blank before
each number.
1. In mathematics, we rely on a system that uses symbols and letters of the
alphabet to make the work faster. This is what we call us algebra or algebraic expressions.
Which of the following is an algebraic expression?
A. m + 3
B. m + 3 = 3x C. m + 3 = 34
D. m + 3=19
2. Which is an expression for this phrase: Seven increased by a number and 9?
A. 9a + 7
B. 9a + 7 = 3x C. 9a + 7 m + 3 = 34 D. 9a + 7 m + 3=19
3. Which is the word phrase for this expression m + 3?
A. the sum of m and 3
B. the divisors of m and 3
C. the addends of m and 3
D. the multipliers of m and 3
4. Which is the word phrase for this expression: n-11?
A. the sum of n and 11
B. the addends of n and 11
C. the difference of n and 11
D. the multipliers of n and 11
K
5. Which is an expression for this phrase: half of k?
B.
C.
k
k
A.
k
D.
-2-
5
4
3
6. Which is an expression for this word phrase: five times n decreased by twenty-
five?
A. 5n+25
B. 5n-25
C. 5nx25
D. 5:25
7. Which is the word phrase for this expression: 2 (r+6)?
A. twice the addends of r and 6
B. thrice the quotient of r and 6
C. twice the product of r and 6
D. twice the sum of r and 6
8. Which is an expression for this word phrase: twice the difference between
ninety and q?
A. 2 (90+q)
B. 2 (90xq)
C. 2 (90:9)
D. 2 (90-9)​


Sagot :

Answer:

Read and analyze each item. Write the letter of the correct answer on the blank before each number.

1.) In mathematics, we rely on a system that uses symbols and letters of the alphabet to make the work faster. This is what we call us algebra or algebraic expressions. Which of the following is an algebraic expression?

  • [tex] \large{ \underline{ \boxed{ \tt{ \: m + 3\: }}}}[/tex]

2.) Which is an expression for this phrase: Seven increased by a number and 9?

  • [tex] \large{ \underline{ \boxed{ \tt{ \: 7(x + 9)\: }}}}[/tex]

3.) Which is the word phrase for this expression: m + 3?

  • [tex] \large{ \underline{ \boxed{ \tt{ \: the \: sum \: of \: m \: and \: 3\: }}}}[/tex]

4.) Which is the word phrase for this expression: n - 11?

  • [tex] \large{ \underline{ \boxed{ \tt{ \: the \: difference \: of \: n \: and \: 11\: }}}}[/tex]

5.) Which is an expression for this phrase: half of k?

  • [tex] \large{ \underline{ \boxed{ \tt{ \: \frac{ \: k \: }{ \: 2 \: } \: }}}}[/tex]

6.) Which is an expression for this word phrase: five times n decreased by twenty-

five?

  • [tex] \large{ \underline{ \boxed{ \tt{ \: 5n-25 \: }}}}[/tex]

7.) Which is the word phrase for this expression: 2(r + 6)?

  • [tex] \large{ \underline{ \boxed{ \tt{ \: twice \: w \: the \: sum \: of \: r \: and \: 6 \: }}}}[/tex]

8.) Which is an expression for this word phrase: twice the difference between ninety and q?

  • [tex] \large{ \underline{ \boxed{ \tt{ \: 2(90 - q) \: }}}}[/tex]