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]