## deenarae Group Title can you please help me translate 48 divided by the sum of 3 and 9 into numerical expression 2 years ago 2 years ago

1. UnkleRhaukus Group Title

$48 \div (3+9)$

2. anjali_pant Group Title

$48\div(3+9)$

3. deenarae Group Title

ok thanks i have another if u could help with it also plz

4. UnkleRhaukus Group Title

sure

5. anjali_pant Group Title

and dt gives 4

6. UnkleRhaukus Group Title

$+ \text{d}t =4$

7. deenarae Group Title

translate the quotient of 12 plus 8 and 5 into numerical expression

8. anjali_pant Group Title

*that (48/12=4)

9. UnkleRhaukus Group Title

$(12+8) \div 5$

10. deenarae Group Title

how did u get that answer im confused

11. deenarae Group Title

then it also says to write result in both horizontel and vertical format????

12. UnkleRhaukus Group Title

well the quotient between two numbers ( a and b ) can be written as $a\div b$or equivalently$\frac{a}{b}$

13. UnkleRhaukus Group Title

so the first one can also be written as $\frac{48} {3+9}$

14. UnkleRhaukus Group Title

and the last one $\frac{12+8}{5}$

15. deenarae Group Title

thanks unkle rhaukus i finally get it

16. UnkleRhaukus Group Title

yay did you also know $(a+b )\div c = \frac{a+b}{c} =\frac{a}{c} +\frac{b}{c}$

17. deenarae Group Title

1 last question just check one i already did: the sum of twice four and nine

18. UnkleRhaukus Group Title

$( 2\times 4) +9$

19. deenarae Group Title

the last part yopu just did we havent quite got that far yet thanks i didnt do it right but i can see where i messed up

20. Rohangrr Group Title

it will be some what like this it's only a hint! Problem: Ms. Jensen likes to divide her class into groups of 2. Use mathematical symbols to represent all the students in her class. Solution: Let g represent the number of groups in Ms. Jensen's class. Then 2 · g, or 2g can represent "g groups of 2 students". In the problem above, the variable g represents the number of groups in Ms. Jensen's class. A variable is a symbol used to represent a number in an expression or an equation. The value of this number can vary (change). Let's look at an example in which we use a variable. Example 1: Write each phrase as a mathematical expression. Phrase Expression the sum of nine and eight 9 + 8 the sum of nine and a number x 9 + x The expression 9 + 8 represents a single number (17). This expression is a numerical expression, (also called an arithmetic expression). The expression 9 + x represents a value that can change. If x is 2, then the expression 9 + x has a value of 11. If x is 6, then the expression has a value of 15. So 9 + x is an algebraic expression. In the next few examples, we will be working solely with algebraic expressions. hope it helps!!