Translate into a variable expression. Then simplify the expression.
Twice the sum of four times a number n and thirty.
Can you explain how to write it as a variable expression pls
Also what does "and" stand for here?
"and" usually suggests addition,
e.g. what is 5 and 6 ?
let the number be n
"the sum of 4 times a number and 30" --> 4n+30
now twice that ---> 2(4n+30)
= 8n + 60
One more than the product of one and a number xxx.
Translate into a variable expression and then simplify. five times the sum of a number and four
To write the given sentence as a variable expression, let's break it down step by step.
1. "Twice the sum of": This means we need to find the sum of two values.
2. "Four times a number n": We multiply the number n by 4.
3. "And": In this context, "and" represents addition.
4. "Thirty": This means we add 30 to the previous result.
Now, let's put these steps together to form the variable expression:
Step 1: Four times a number n: 4n
Step 2: The sum of 4n and thirty: 4n + 30
Step 3: Twice the sum of (4n + 30): 2(4n + 30)
To simplify the expression, we can distribute the 2 to both terms within the parentheses:
2(4n + 30) = 2 * 4n + 2 * 30
This simplifies to:
8n + 60
So, the simplified variable expression is 8n + 60.