Answer:
-39 + 20x
Step-by-step explanation:
4 + 7 x 3 - 24 x 2 + 20x - 16
4 + 21 - 48 + 20x - 16
-39+20x
Answer:
Wednesday: 45 - 18
Thursday: 55 - 22
Step-by-step explanation:
18*2.5=45
55/5=11
11*2=22
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!
</span>
Divide 16 by the percentage:
16 / 0.35 = 45.71428571
16 is 35% of 45.71428571 inches. (round the answer as needed.)
