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3 years ago

(19+8)x11+4 Order of operations

Mathematics

2 answers:

Allushta [10]3 years ago

6 0

Answer:

$301$

Step-by-step explanation:

<h2><u>Order of Operations is another term for PEMDAS:</u></h2><h2><u /></h2><h2><u>Parentheses </u></h2><h2><u>Exponents</u></h2><h2><u>Multiplication and Division </u></h2><h2><u>Addition and Subtraction</u></h2>

<u />

<u>So we first do the problem in the parenthesis:</u>

$(19+ 8) ==> 27$

<u></u>

<u>Next do the multiplication:</u>

$27 * 11 ==> 297$

<u>Then lastly, do the addition:</u>

$297 + 4 ==> 301$

likoan [24]3 years ago

4 0

Answer:

19+8=27

27*11=297

297+4=301

Step-by-step explanation:

BODMAS

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36/45 reduced in the lowest terms

malfutka [58]

Answer:

$\frac{4}{5}$

Step-by-step explanation:

They both (36 and 45) go into 9. Divide them both by 9.

$\frac{4}5}$

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3 years ago

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A theater has 50 seats on the front row. There are four additional seats in each following row. PART B: How many seats would the

Roman55 [17]

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2 years ago

Emma also wonders how long it will take her balance of $300 to reach $450, assuming she doesn't make any payments

Mama L [17]

Using an exponential equation, supposing a rate of 5%, it is found that it will take about 2.9 years for Emma's balance to reach $450.

An increasing exponential function is modeled by:

$A(t) = A(0)(1+r)^t$

In which:

A(0) is the initial value.

r is the growth rate, as a decimal.

In this problem:

Her initial balance is of $300, hence . A(0)=300

The growth rate is of 15%, hence R =0.15

Then,

$A(t) = A(0)(1+r)^t$

$A(t) = 300(1+0.15)^t\\A(t) = 300(1.5)^t\\$

It will reach $450 after t years, for which A(t) = 450, hence:

$A(t) =300(1.15)^t\\450= 300(1.15)^t\\1.15^t=\frac{450}{300}\\\\1.15^t =1.5\\log(1.15)^t=log1.5\\t log 1.15 = log 1.5\\t = \frac{log1.5}{log1.15}\\\\ t =2.9$