Answer:
It's already there or it's not then put in 100
Step-by-step explanation:
Answer:
a)-5
Step-by-step explanation:
-(5-(a+1))=9-(5-(2a-3))
= -(5-a-1)= 9-(5-2a+3)
= -5+a+1 = 9-5+2a-3
= -4+a = 1+2a
= -4 - 1 = 2a-a
= -5 = a
Answer:
False
Step-by-step explanation:
y=5x + 5
0=5 (5)+5
0=10+5
0≠15
False
The mathematical expression for the given situation is 3x-28.
The given statement is "The difference between three times a number and 28".
An expression in math is a sentence with a minimum of two numbers/variables and at least one math operation in it.
Steps to convert word problem into expression:
Let the unknown number be x.
According to the question, the expression is 3x-28
Therefore, the mathematical expression for the given situation is 3x-28.
To learn more about an expression visit:
brainly.com/question/14083225.
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Answer:
3x-28
Step-by-step explanation:
"The difference" means subtract.
"Three times" means multiply by three.
"A number" means use any variable (I prefer x).
Answer:
20
Step-by-step explanation:
To find the explicit equation for an arithmetic sequence, we can use the formula:
a_n = a_1 + d(n - 1)
where a_n is the n-th term of the sequence, a_1 is the first term of the sequence, and d is the common difference. Plugging in the values for this sequence, we get:
a_n = 100 + (-20)(n - 1)
Simplifying, we get:
a_n = 120 - 20n
This is the explicit equation for the sequence 100, 80, 60, 40, … You can use this equation to find any term of the sequence by plugging in the value of n. For example, to find the fifth term of the sequence, you can plug in n = 5 and get:
a_5 = 120 - 20(5) = 120 - 100 = 20