Mr. Chavez's third-graders go to gym class at 11:15. Students rotate through three activities for 8 minute each. Lunch begins at
1 answer:
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To group an expression, means that the factors of the expression are to be separated in (), [] or {}.
An expression with a value of 80 is:
The number is given as:
Factorize
Factorize 40
Express as an exponent
Express 20 as 4 x 5
Express 5 as 3 + 2
Express 4 as 2 + 2
Hence, the above expression has a numerical value of 80
Read more about numerical expressions at:
Answer:
Step-by-step explanation:
From the information given,
Let the two digits that Chen writes down to be p and q
where,
q will be in the unit place and p will be in the tens place.
So, the value of the digit = 10p + q
So, if he swapped the number, he will have 10q + p
However,
the new number determined is thrice more than the 1/3 pf the original number.
i.e
the 1/3rd of the original number =
=
thrice more than that will be =
∴
multiply through by 3, we have :
10p+q + 9 = 30q + 3p
collecting the like terms, we have:
10p - 3p +q -30q +9 = 0
7p - 29q +9 = 0
7p - 29q = -9
Therefore, p,q lie between 0 and 9
Therefore, the possibility of the original number is p = 7 and q = 2
For this case we have that the quotient of 6 and a number, can be expressed as:
Where the variable "x" represents the incognito number.
Now we have that expression is subtracted from 100. Now, we can write the following:
ANswer:
Option A