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3 years ago

Evaluate. 72 - 3 + 9 × 8 ÷ 2

Mathematics

2 answers:

RSB [31]3 years ago

8 0

Order of operations so multiplication then division, then subtraction and addition.

9*8 = 72

72/2 = 36

72-3 = 69

69+36 = 105

slamgirl [31]3 years ago

7 0

Answer:

<em>Use the order of operations to simplify numerical expressions. The order is parentheses, exponents and roots, multiplication and division, addition and subtraction. Multiplication and division are "the same" so you would use the first one that occurs from left to right.</em>

Step-by-step explanation:

7^2 - 3 + 9 x 8 ÷ 2

49 - 3 + 9 x 8 ÷ 2

49 - 3 + 72 ÷ 2

49 - 3 + 36

49 - 39

W=10

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Answer:

The operation that will cancel out division is multiplication.

Step-by-step explanation:

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$\frac{2+5x}{2} \\$

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$2*(\frac{2+5x}2} )$

$4+10x\\$

*to get x alone, we must subtract 4 from both sides*

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2 years ago

Whats 4/5 as a decmal?

Rashid [163]

Answer:

0.8

Step-by-step explanation:

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3 years ago

The population of a city is 45,000 and decreases 2% each year. If the trend continues, what will the population be after 15 year

Sloan [31]

The answer is 31,500.
Let's clarify some things :
1% of 45,000 is 450
Maybe you're wondering why , it's actually very simple .
Just move the decimal to the left once if you want to find 10% , move the decimal twice if you want to find 1%.
We now that 1% equals 450. Then 2% equals to....
Well just add another 1% .
450 + 450 or 450 times 2
Which equals 900.
Now we want to find what's the population after 15 years.
900 times 15= 13,500
But that's not the answer ....
That's what is decreasing.
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That's why the answer is 31,500.

4 0

3 years ago

Sunday by 11:59pm

beks73 [17]

Answer:

The amount of markup is 88 dollars.

Step-by-step explanation:

Given that the whole sale price of bicycle is: $400

$P = \$400$

Mark up is the profit that the seller of the product makes after selling the product more in price more than its cost or buying price.

Given that mark up percentage is 22%

It can be written mathematically as:

$Mark\ up = 22\%\ of\ Price\\Mark\ up = 0.22 * P\\Mark\ up = 0.22 * 400\\= \$88$

Hence,

The amount of markup is 88 dollars.

7 0

3 years ago

Enos took out a 25-year loan for $135,000 at an APR of 6.0%, compounded monthly, and he is making monthly payments of $869.81. W

Alborosie

Present value = 135000
Monthly interest, i = 0.06/12 = 0.005
Monthly payment, A= 869.81

Future value of loan after 16 years
$F=P(1+i)^n$ [compound interest formula]
$=135000(1+.005)^{16*12}$
$=351736.652$

Future value of payments after 16 years
$\frac{A((1+i)^n-1)}{i}$
$=\frac{869.81((1+0.005)^{16*12}-1)}{0.005}$
$=279287.456$

Balance = future value of loan - future value of payments
=351736.652-279288.456
= $ 72448.20

Note: the exact monthly payment for a 25-year mortgage is
$A=\frac{P(i*(1+i)^n)}{(1+i)^n-1}$
$=\frac{135000(0.005*(1+0.005)^{25*12}}{(1+0.005)^{25*12}-1}$
$=869.806892$

Repeating the previous calculation with this "exact" monthly payment gives
Balance = 72448.197, very close to one of the choices.

So we conclude that the exact value obtained above differs from the answer choices is due to the precision (or lack of it) of the provided data.

The closest choice is therefore <span>$72,449.19</span>

6 0

3 years ago

Read 2 more answers