Answer: 1 is 1,3
Step-by-step explanation:
Answer:
x = 18
Step-by-step explanation:
Subtract 5 on both sides:
-2x + 5 =- -31
-5 -5
-2x = -36
Divide by -2 on both sides:
-2x = -36
/-2 /-2
x = 18
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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Answer:
put them in order
Step-by-step explanation:
1/2+2-3=309y6
The slope (m) of a line is found from
... m = (change in y)/(change in x)
... m = (22 - 0)/(-8-3) = 22/-11 = -2
The point-slope form of the equation for a line with slope m through point (h, k) can be written
... y = m(x -h) +k
We can use the pont (h, k) = (3, 0) and fill in the values:
... y = -2(x -3) +0
... y = -2x + 6 . . . . . . . simplified
