All categories

4 years ago

Simplify the expression -2(p+4)

Mathematics

1 answer:

Dima020 [189]4 years ago

7 0

Answer: $-2p-8$

Step-by-step explanation:

You need to remember the Distributive property:

$a(c+b)=ac+ab$

And the multiplication of signs:

$(+)(+)=+\\(-)(-)=+\\(+)(-)=-$

Therefore, applying the explained before, to simplify the expression $-2(p+4)$ you need to multiply each term that are inside of the parentheses by -2, then you get:

$-2(p+4)\\(-2)(p)+(-2)(4)\\-2p-8$

You might be interested in

Mr Adams worked 78 hours during his six-day work week if he worked the same number of hours every day, how many hours did he wor

Vedmedyk [2.9K]

Answer:

Mr Adams worked for 52 hours in four days.

Step-by-step explanation:

To get 52, you divide 78 and 6 and get 13. 13 is how many hours he worked a day. Since we need to find out how many hours he worked for 4 days, we add 13 4 times. If we add, the equation would look like this: 13+13+13+13=52. We can multiply also since it's easier. If we multiply our equation would be 13×4. Therefore, Mr Adams worked 52 hours in four days. Hope this helped

5 0

3 years ago

15. Mark Twain one observed that the lower Mississippi River is very crooked and that over the years, as the bends and turns str

MrMuchimi

Answer:

Step-by-step explanation:

I'm sure he was making a joke at the expense of people who rely on mathematics rather than common sense. It is funny, but then Twain was a remarkably funny author..

The problem is that the comparison is apt using some sort of proportion, but it is absurd to think that the land holding the river would also shrink a proportional amount.

The river reached a minimum (presumably) in 1875 by cutting out all the loops that were there in 1700. The Mississippi was then a straight line from it's beginning to its delta on the gulf of Mexico. It could not get any shorter. Still, Twain managed to get laughs with his whimsical humor.

Thanks for posting. This made my evening.

7 0

3 years ago

A gaming console that is $300 plus 8% tax. What is the final cost of the console? (Round to the nearest cent)

katrin2010 [14]

Answer: $324.00

Step-by-step explanation:

Convert 8% to decimals. You can do this by dividing by 100

$\frac{8}{100}=0.08$

Calculate 8% of 300 (0.08*300) and add 300 (+300)

$0.08(300)+300\\24+300\\324$

8 0

3 years ago

Jason writes the following function to represent the amount of money in his account after 7 years given quarterly compounding of

Scrat [10]

Answer:

$f(t) = 2430(1 + \frac{0.16}{4} )^{7 \times 4}$

The APR is 16%.

Step-by-step explanation:

Jason writes the following function to represent the amount of money in his account after 7 years given quarterly compounding of the $2430 initial deposit as

$f(t) = 2430(1.04)^{28}$ ......... (1)

a. If we want to rewrite the equation in the form

$f(t) = A(1 + \frac{r}{n} )^{nt}$ .......... (2)

Then comparing equation (1) and (2) we get, A = 2430 and t = 7

Hence, 7n = 28

⇒ n = 4

Now, $1 + \frac{r}{4} = 1.04$

⇒ r = 0.16 i.e. 16%

Therefore, the expression is

$f(t) = 2430(1 + \frac{0.16}{4} )^{7 \times 4}$ (Answer)

b. The APR is 16%. (Answer)

8 0

3 years ago

Meal=$40 find the total cost

zepelin [54]

Answer:

Step-by-step explanation:

You want to leave a 15% tip on a meal that cost $48.

First, convert the 15% to an actual number that can be used in a calculation. For percents,this is always done by simply dividing the percent (in this case 15%) by 100%.So, the conversational term "15%" becomes 15% / 100% = 0.15 in terms of a real mathematical number.

Second, you need to find out what 15% of your $48 meal cost is.This is always done by multiplying 0.15 by $48.00, or

0.15 x $48.00=$7.20.

So, the amount of tip you are going to leave is $7.20.

This makes the total cost of your meal (to write on your charge slip or other payment)

$48.00 + $7.20 = $55.20.

i hope this may come to use to your rude a s s

7 0

3 years ago