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Aleksandr-060686 [28]
3 years ago
10

Evaluate (b+c) if a=2,b=-5 and c= -3

Mathematics
2 answers:
anastassius [24]3 years ago
6 0
The answer would be -8
melisa1 [442]3 years ago
3 0

It’s a good idea to get into the habit of using parentheses

when substituting numbers in for variables.

If you have parentheses in your original problem, change them to brackets as you substitute (to avoid confusion).

Now plug in the values for b and c into the problem.

So we have [(-5) + (-3)].

Simplifying inside the brackets, we get [(-8)].

So -8 is the answer.

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Just need the answers
Tju [1.3M]
Given is the ones that say they are given on 2 3 4 & 5
6 0
3 years ago
If time is four hours from now, the time left till midnight would be quarter that if it is one hour from now. What time is it no
lapo4ka [179]

Answer:

The time now is 7 pm

Step-by-step explanation:

Suppose that now is the time T.

We know that:

"if time is four hours from now, the time left till midnight would be a quarter that if it is one hour from now".

Then:

if we define midnight as 12, and we assume that T is in the pm range.

Then the "time left till midnigth, assuming that the time is four hours from now" will be written as (12 - (T + 4))

With this in mind, we can write the problem as:

12 - (T + 4) = (1/4)*( 12 - (T + 1))

Now we can solve this for T.

12 - T - 4 = (1/4)*(12 - T - 1)

8 - T = (1/4)*(11 - T)

4*(8 - T) = 11 - T

32 - 4*T = 11 - T

32 - 11  = -T + 4*T

21 = 3*T

21/3 = T

7 = T

Then T = 7 pm

The time now is 7 pm

7 0
3 years ago
Simplify.<br><br><br><br>4−8÷2+3<br><br><br>help lol​
Musya8 [376]

Answer:

we start with -8 divided by 2 because of PEMDAS

we now have -4

then we do 4-4+3=3

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
I need help ,, i don't understand !<br>​
otez555 [7]

Answer: B

Step-by-step explanation: The question is asking for the point greatly different from all the rest, the outlier. Point B is far away from the grouping of all the other points, making it the outlier.

7 0
3 years ago
Jane read 3/8 of a book for 6 days. How many books did she read?
otez555 [7]

Hey there!

The answer to your question is 2 \frac{1}{4} books.

To solve this, we must multiply \frac{3}{8} by 6

\frac{3}{8} *\frac{6}{1}=\frac{18}{8} =2\frac{1}{4}

Hope it helps! Have a great day!

7 0
3 years ago
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