Answer: no
Step-by-step explanation:
algebraic expression for "a number , n, divided by 4 is 4. I
Answer:
He is correct
Step-by-step explanation:
12=100%
15 is 3 more than 12
12 divided by 3 is 4
100 divided by 4 is 25
100 + 25 = 125
Answer:
-x - 29
Step-by-step explanation:
-2(5x + 1) + 3(3x - 9) = First, distribute the numbers in the parenthesis
-10x - 2 + 9x - 27 = Then, combine like terms
(-10x + 9x) + (-2 - 27)= Next, distribute the digits
-x - 29
Answer:
The best estimate for the value of the given expression is -2 1/2. Correct: Second alternative
Explanation:
<u>Estimate and Number Rounding</u>
There are situations where numbers must be estimated according to certain rules. If we have a number and we need a good approximate to it, we can use rounding to the required number of decimals.
The question requires to find the best estimate for the operation:

We calculate the decimal value of the expression:

The first alternative is incorrect. It's a good approximation because it's close to the number, but the next alternative is the closest of all choices.
The second alternative Is correct. The value of -2 1/2 is -2.5. The number -2.64 is closer to -2.5 than to -3 which is the alternative A.
The third alternative Is incorrect. 7 is a positive number and it's not even close to -2.64
The last alternative Is incorrect. 7 1/2 = 7.5 is a positive number and it's not even close to -2.64