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alisha [4.7K]
3 years ago
14

What is the first operation used to evaluate 13-2x3+4 divided by 4+4

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
6 0

Answer:

  multiplication

Step-by-step explanation:

The evaluation of ...

  13 -2·3 +4/4 +4

starts with the multiplication, because there are no exponents or parentheses.

  13 -6 +4/4 +4

Next is the division:

  13 -6 +1 +4

Finally, the addition and subtraction:

  7 +1 +4

  8 +4

 12

_____

We have assumed your x is not a variable, but is intended to indicate multiplication. We have also assumed that your "divided by" implies no particular grouping, so that the numerator is the first preceding number and only the first following number is in the denominator.

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Evaluate the expression 3x + 21 for x=3
hichkok12 [17]

Answer:

30

Step-by-step explanation:

Problem = 3x + 21 for x=3

3(3) +21 --- subsitute the three for the x

9 + 21 ---- multiply the 3s together

30 ----- add

6 0
3 years ago
There are some black and white buttons in a container.
Svetradugi [14.3K]

ANSWER

60 buttons.

EXPLANATION

Let the number of buttons in the container be x.

Then the number of buttons that are black are:

\frac{7}{10} x

The number of buttons that are white

\frac{3}{10} x

The difference between the white and the black buttons

\frac{4x}{10}  = 24

Solve for x.

4x = 240

x =  \frac{240}{4}

x = 60

Hence there are 60 buttons in the container.

4 0
3 years ago
Rates/Proportional Relationships.
brilliants [131]

Answer:

KKRNF.EWBVERUVHUYLERBVHJDBREVVVLEKVOEUFJOE

Step-by-step explanation:NWEKFK.EWBFEWHBV.KWEUF67OFVD.KFERLUGVK34UGILBEFLIUBYETRNTYM6

3 0
3 years ago
Producers will make 1000 refrigerators available when the unit price is $280.00. At a unit price of $400, 5000 refrigerators wil
Kobotan [32]

Answer:

For linear equations we use:

p=mx+b   ------  (1)

Now we have the following coordinates:

(x1,p1)= (1000,280) and (x2, p2)=(5000,400)

First we need slope (m)

m= (400-280)/(5000-1000)

= 120/4000=0.03

Now we will plug the value of m in the first equation

280=0.03(1000)+b

=> 280=30+b

=> b = 250

Now plug into p=mx+b using only m=0.03 and b=250

p=0.03x+250

When the unit price is $440, we can plug in 440 in for p;

440=0.03x+250

=> 0.03x=440-250

=> 0.03x=190

=> x = 6333 refrigerators

The lowest price at which  a refrigerator will be marketed, we can find this by plugging x = 0 in p=mx+b.

p=0.03(0)+250

=> p = $250

6 0
3 years ago
The perimeter of this figure Is 42.5<br><br>Find the area of the figure.​
Murljashka [212]

Answer:

Formula - 42.5/4^2\\

(perimeter/4^2)

42.5/4 = 10.625

10.625^2 = 112.890625

Answer - 112.890625

5 0
2 years ago
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