Answer is C 41/20 inches
Monday 3/10
Tuesday twice as Monday: 3/10 * 2 = 6/10
Wednesday: 1/4
Thursday: 1/2
Friday: 2/5
Total: Monday + Tuesday + Wednesday+Thursday + Friday
= 3/10 + 6/10 + 1/4 + 1/2 + 2/5
= 6/20 + 12/20 + 5/20 +10/20 +8/20
=41/20
I think your answer should be s^0
We can represent our three consecutive integers as the following:
X ⇒ first integer
X + 1 ⇒ second integer
X + 2 ⇒ third integer
Since the sum is 78, we can setup our equation:
x + (x + 1) + (x + 2) = 78
~simplify
3x + 3 = 78
~subtract 3 from both sides
3x = 75
~divide both sides by 3
x = 25
Since x = 25, x + 1 would be 26 and x + 2 would be 27.
So our three consecutive integers are 25, 26, and 27.
The term is used as means of asking students to write down equations using simple mathematical symbols (numerals, the four basic mathematical operators, equality symbol)[5]. Sometimes boxes or shapes are used to indicate unknown values. As such number sentences are used to introduce students to notions of structure and algebra prior to a more formal treatment of these concepts.
A number sentence without unknowns is equivalent to a logical proposition expressed using the notation of arithmetic.
[edit] Examples
A valid number sentence that is true: 3 + 7 = 10.
A valid number sentence that is false: 7 + 9 = 17.
A valid number sentence using a 'less than' symbol: 3 + 6 < 10.
An example from a lesson plan:
Some students will use a direct computational approach. They will carry out the addition 26 + 39 = 65, put 65 = 23 + □, and then find that □ = 42.[6] (wikipedia)
<span>I hope this is helpful!
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