Answer:
7 . 4 + 6 - 12 : 4 = 31
Step-by-step explanation:
* To solve this problem lets revise the order of operations in
mathematics
- The operations are:
# Addition
# Subtraction
# Multiplication
# Division
# Exponentiation
# Grouping ⇒ Parenthesis or brackets
- The order of these operations is:
# Parenthesis
# Exponents
# Multiplication and Division which comes first from left to right
# Addition and Subtraction which comes first from left to right
- There is a word made from the first letter of each operation
PEMDAS to remember the order of operations
* Lets solve the problem
∵ 7 . 4 + 6 - 12 : 4
∵ The (.) means multiply the numbers
∵ The symbol (:) means divided the numbers
∴ At first multiply 7 by 4 and divide 12 by 4
∴ (7 × 4) + 6 - (12 ÷ 4)
∴ 28 + 6 - 3
∵ Addition comes before subtraction from the left
∴ (28 + 6) - 3
∴ 34 - 3 = 31
∴ 7 . 4 + 6 - 12 : 4 = 31
Answer: 4 boxes
Step-by-step explanation: 6 caramel chocolates and 9 milk chocolates in each box.
Step-by-step explanation:
500 divided by 3 __
__ + 3645 = __
__ - 240 = __
Answer:
$12.99 for 5 pounds is a better deal
Step-by-step explanation:
for the first case
a 5 lb bag costs $12.00
the unit price (i.e dollars per pound) for this is :
unit price = $12 / 5 lb = $2.40 per pound
for the second case,
a 12 lb bag costs $31.99
similarly, the unit price for this case is :
unit price = $31.99 / 12 lb = $2.67per pound
if we compare the 2 unit price, it is clear that $2.40 per pound is a better deal than $2.67 per pound, hence $12.99 for 5 pounds is a better deal
Hope this helps!