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AnnZ [28]
3 years ago
12

What is the unit digit of the cube of the number 1127​

Mathematics
1 answer:
Solnce55 [7]3 years ago
7 0

Answer:

3.

Step-by-step explanation:

As the last digit is 7 the unit digit of it's cube is the last digit of 7^3.

7^3 = 7 * 49 = 343 so the answer is 3.

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You invested $ 7000 between two accounts paying 3 % and 5 % annual? interest, respectively. If the total interest earned for the
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Answer:

In the first account was invested \$3,000  at 3%

In the second account was invested \$4,000  at 5%

Step-by-step explanation:

we know that

The simple interest formula is equal to

I=P(rt)

where

I is the Interest Value

P is the Principal amount of money to be invested

r is the rate of interest  

t is Number of Time Periods

in this problem we have

First account

t=1 years\\ P=\$x\\ r=0.03

substitute in the formula above

I=x(0.03*1)

I=0.03x

Second account

t=1 years\\ P=\$(7,000-x)\\ r=0.05

substitute in the formula above

I=(7,000-x)(0.05*1)

I=350-0.05x

Remember that

The interest is equal to \$290

so

Adds the interest of both accounts

0.03x+350-0.05x=\$290

0.05x-0.03x=350-290

0.02x=60

x=\$3,000

therefore

In the first account was invested \$3,000  at 3%

In the second account was invested \$7,000-\$3,000=\$4,000  at 5%

7 0
3 years ago
I had a dream of a beautiful cupcake tree, growing 4 loveee cupcakes every 12 hours for 36 hours. Please make my dream come true
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Answer: sounds sweet:)

Step-by-step explanation:

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3 years ago
So like my my claim is “Are we too dependent on technology” And now I have to write my first paragraph without giving the clue a
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a 60 foot tree casts a shadow 85ft long. the sine of the angle between the ground and the line that connects the tip of the shad
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Elaine has a piece of wire that is 2.16 years long.mallory has a piece of wire that is 2.061 m long. Who’s piece of wire is long
Monica [59]

Answer:

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Step-by-step explanation:

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3 0
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