What is the mathematical sentence of: number p is multiplied by 3, and then 10 is added to the result; the final answer is less than 31?
A. 3p+10 < 31
B. 3p+10 < 31
C. 3(p+10) < 31
D. 10p +3 < 31
Share
What is the mathematical sentence of: number p is multiplied by 3, and then 10 is added to the result; the final answer is less than 31?
A. 3p+10 < 31
B. 3p+10 < 31
C. 3(p+10) < 31
D. 10p +3 < 31
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
In algebra we are doing arithmetic with just one new feature − we use letters to represent numbers. Because the letters are simply stand-ins for numbers, arithmetic is carried out exactly as it is with numbers. In particular the laws of arithmetic (commutative, associative and distributive) hold.
For example, the identities
2 + x = x + 2 2 × x = x × 2
(2 + x) + y = 2 + (x + y) (2 × x) × y = 2 × (x × y)
6(3x + 1) = 18x + 6
hold when x and y are any numbers at all.
Step-by-step explanation:
Substitution: ‘Find the value of 2x + 3 if x = 4.’ In this case the pronumeral is given the value 4.
Solving an equation: ‘Find x if 2x + 3 = 8.’ Here we are seeking the value of the pronumeral that makes the sentence true
Identity: ‘The statement of the commutative law: a + b = b + a.’ Here a and b can be any real numbers.
Formula: ‘The area of a rectangle is A = lw.‘ Here the values of the pronumerals are connected by the formula.
Equation of a line or curve: ‘The general equation of the straight line is y = mx + c.’
Here m and c are parameters. That is, for a particular straight line, m and c are fixed.
SANA PO MAKATULONG