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masya89 [10]
3 years ago
6

X/2=40/16

1" title=" \frac{x}{2} = \frac{40}{16} " alt=" \frac{x}{2} = \frac{40}{16} " align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Charra [1.4K]3 years ago
4 0
\frac{x}{2} = \frac{40}{16}

To find our solution (x), we multiply both sides by 2. Then we get the following:

\frac{x}{2} \times 2 = \frac{40}{16} \times 2
x = \frac{40}{16} \times \frac{2}{1}
x = \frac{80}{16} = 5

Therefore the answer is x = 5
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Mary has $65,000 to invest in two accounts. The first account is a private savings offering 6% annual interest and the second ac
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Answer:

first account with 6% interest ( x ) = $46000

second account with 4% interest ( y ) = $19000

Step-by-step explanation:

Principal = $65000

first interest rate = 6%

second interest rate = 4%

assuming ; X = money invested in first account ,  Y = money invested in second account

hence :

( 65000 - y ) * 6% + ( 65000 - x ) * 4% = 3520

3900 - 0.06 y  + 2600 - 0.04 x = 3520

0.04 x + 0.06 y = 3900 + 2600 - 3520

0.04 x + 0.06 y = 2980 ----- ( 1)

        x + y = 65000  ------- ( 2 )

solve equation 1 and 2 simultaneously by elimination method

0.04 x + 0.06 y = 2980 ------  ( 3 )

0.06 x + 0.06 y = 3900 ------- ( 4 )

subtract equation 3 form equation 4

0.02 x  = 920 ,   hence x = $46000

therefore y = $65000 - $46000 =  $19000

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2 years ago
2 yd<br> 3.1 yd <br> find the area
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Answer:

Area = 6.2 yards²

Step-by-step explanation:

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3 0
3 years ago
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9 to the power 3 + 3 to the power 2 + 6 to the power 3 + 15 power 2 equals to how much
Llana [10]
Hey! So, here's a tip. When writing exponents, an easier way is to write a^b, rather than a to the b power. Besides that, here is your answer!


So-------

9^3=729

3^2=9

6^3=216

15^2=225



Now that we have that figured out, we can add them together, wish is simple. 729 + 9 + 216 + 225= 1,179.



Therefore, your final answer will be 1,174.




If you have any questions on this, I'm happy to help you. :)




3 0
3 years ago
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Answer:

B

Step-by-step explanation:

Two times the quantity of a number minus 12.

Represent the number with the variable y.

The quantity of a number minus 12 is then: (y-12).

Two times this quantity is 2(y-12).

So the answer is 2(y-12), which is B.

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Molodets [167]

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