6x - 5 is the total number of coins Nancy and Bill have.
An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division. The terms involved in an expression in math are:
Constant: A constant is a fixed numerical value.
Variable: A variable is a symbol that doesn't have a fixed value.
Term: A term can be a single constant, a single variable, or a combination of a variable and a constant combined with multiplication or division.
Coefficient: A coefficient is a number that is multiplied by a variable in an expression.
Given, Nancy has x coins
No. of coins Bill has = five coins less than 5 times of coins Nancy has
= 5x - 5
Total no. of coins Nancy and bill have = x + 5x -5
= 6x - 5
Hence, Nancy and Bill have total 6x - 5 coins.
Learn more about expression here:
#SPJ2
Answer: 6x - 5
Step-by-step explanation:
Answer:
1080
Step-by-step explanation:
looking at the ratio of 1 : 3 : 6, we can say that the pupils are divided into 1 + 3 + 6 = 10 "parts".
Indian are 1 part, Malay are 3 parts, and Chinese are 6 parts.
So 3x (3 parts of malay) is 360 more than 1x (1 part of Indian). Thus:
3x - 360 = x
2x = 360
x = 180
We know chinese is 6 parts, or 6x, so Chinese would be 6 (180) = 1080
Hence, there are 1080 chinese pupils