Simplify by combining like terms:(12x-10)-(-5x-2)
(-6x-15)-(7x-3)

Answer:

do whats in the parenthesis first

Step-by-step explanation:

so like this

7x^4[(6+3)-4]

7x^4[9-4]

7x^4+5

If brainiest is earned its greatly appreciated

Answer:

33 or 63

Step-by-step explanation:

6 +3= 9

7 x 4 = 28

9 - 4 = 5

28 + 5 = 33

9- 4 = 5

5 + 4 = 9

7 x 9 = 63

Answer:

We know that:

" Elapsed time is the time or difference between a beginning time and an ending time ".

Now the two different methods to find the elapsed time is:

Method 1:

Subtract 2:30 directly from 2:58. 

2:58 - 2:30 = 0:28

Hence, the elapsed time is 28 minutes.

Method 2:

Round 2:58 to 3:00, subtract 2:30 from 3:00, and at the end subtract 2 to get the desired time(2:58 + 2 = 3:00)

( Since it is easy to calculate the whole numbers).

2:58 is approximately 3:00

3:00 - 2:30 = 30 min

30 min - 2 min = 28 min.

Hence, elapsed times is 28 minutes.

Answer:

Carrie will pay $105 each month.

Step-by-step explanation:

Carrie borrowed $840 from a friend to pay for a car repair. Carrie promises to repay her friend in 8 equal monthly payments.

That means the payments will be = dollars at each month.

And no remainder amount is left.

Answer:

The greatest number of customers that could have been in the store is 449.

Step-by-step explanation:

Consider the provided number information

Here, we need to round off to the nearest hundred.

The rule of rounding a number is:

If 0, 1, 2, 3, or 4 follow the number, then no need to change the rounding digit.

If 5, 6, 7, 8, or 9 follow the number, then rounding digit rounds up by one number.

Now, consider the number 400.

We want the greatest number that's rounds to 400.

For greatest number the number should be greater than 400. We don't want to increase the number at the Hundreds place, so the greatest possible choice for Tens place is 4. For the greatest number place 9 at ones place.

Hence, the greatest number is 449 because 449 rounded to nearest hundred is 400.