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Wewaii [24]
3 years ago
12

8 + 3 • 5 - 20 ÷ 4 = ? Please use the order of operations

Mathematics
2 answers:
nalin [4]3 years ago
8 0

We must multiply and divide before adding and subtracting here. Working from left to right, we get:

8 + 15 - 5 = ?

8 + 10 = ?

18 (answer)

expeople1 [14]3 years ago
5 0

You have to use PEMDAS

Parentheses \\ Exponents \\ Multiplication \\ Division \\ Addition \\ Subtraction

You have to do the division and multiplication first.

3 \times 5 = 15 \\ 20 \div 4 = 5

The new equation is:

8+15-5

First do the addition in the beginning:

15 + 8 = 23

At last, subtract 5

23 - 5 = 18

Your answer is 18

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Peter accumulated $7,500 in credit card debt. If the interest rate is 3.5% per year and he does not make any payments for 10 yea
Alecsey [184]

Answer:

$10579.49

Step-by-step explanation:

The formula for amount gotten after a period of time (in years) on a principal which is compounded continuously is given as:

A = P(1 + r)^t

where P = principal (amount borrowed)

r = interest rate

t = number of years

Peter accumulated $7,500 in credit card debt with interest rate as 3.5% per year and he does not make any payments for 10 years.

Therefore, his debt is:

A = 7500(1 + \frac{3.5}{100})^{10}\\ \\A = 7500 (1 + 0.035)^{10}\\\\A = 7500(1.035)^{10}\\

A = $10579.49

He will owe $10579.49 after 10 years

6 0
4 years ago
Read 2 more answers
Santa is preparing for a
IrinaVladis [17]

Answer:

Cost of a package of celery = $20

Step-by-step explanation:

Let, x=carrots and y= celery.

So from the given data we get 2 equations

Equation 1]:-

9x+12y=312------------(for 9 package carrot and 12 package celery)

Equation 2]:-

1x+3y=68---------------(for 1 package carrot and 3 package celery)

After solving equation 2 we get,

x=68-3y------------------------(equation 3)

Now substituting equation 3 in equation 1,

9\times(68-3y)+12y=312

612-27y+12y=312

612-15y=312

612-312=15y

300=15y

∴y=\frac{300}{15}

y=20------------------(equation 4)

Therefore cost of a package of celery = $20

6 0
4 years ago
Triangle DAN is graphed on the set of axes below.
riadik2000 [5.3K]

Answer:60

Step-by-step explanation:

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3 years ago
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Hoochie [10]

Answer:

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Abby= Black/Straight

Zeva= Red/Wavy

Step-by-step explanation:

6 0
3 years ago
Here is the hair length of a sample of 10 students:
scZoUnD [109]

Answer:

The answer to your question is below

Step-by-step explanation:

Mean

           (15 + 4 + 14+ 1.5 + 22 + 2 + 16 + 19 + 18 + 3) / 10

         = 114.5/10

         = 11.45

Median

           1.5 , 2, 3, 4, 14, 15, 16, 18, 19, 22

           (14 + 15) / 2

          = 14.5

Mode

          There is no mode

Standard deviation

  Formula

                         \sqrt{\frac{(x - xm)^{2}}{n - 1}}

Standard deviation = 7.5

5 0
3 years ago
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