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stellarik [79]
3 years ago
10

4. Select all expressions equivalent to 5 *x+6+ (8x + 24).

Mathematics
2 answers:
Setler79 [48]3 years ago
7 0

Answer: preety sure its B

KonstantinChe [14]3 years ago
6 0

Answer:

b

Step-by-step explanation:

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the tens digit of a two digit number is 5 greater the units digit. If you subtract double the reversed number from it, the resul
likoan [24]

Given:

The tens digit of a two digit number is 5 greater the units digit.

If you subtract double the reversed number from it, the result is a fourth of the original number.

To find:

The original number.

Solution:

Let n be the two digit number and x be the unit digit. Then tens digit is (x+5) and the original number is:

n=(x+5)\times 10+x\times 1

n=10x+50+x

n=11x+50

Reversed number is:

x\times 10+(x+5)\times 1=10x+x+5

x\times 10+(x+5)\times 1=11x+5

If you subtract double the reversed number from it, the result is a fourth of the original number.

11x+50-2(11x+5)=\dfrac{1}{4}(11x+50)

11x+50-22x-10=\dfrac{1}{4}(11x+50)

40-11x=\dfrac{1}{4}(11x+50)

Multiply both sides by 4.

160-44x=11x+50

160-50=11x+44x

110=55x

Divide both sides by 55.

\dfrac{110}{55}=x

2=x

The unit digit is 2. So, the tens digit is 2+5=7.

Therefore, the original number is 72.

6 0
2 years ago
Maria has $28 to spend on bottles of water Each bottle of water costs $1.29. There is a $1.50 recycling fee for buying bottled w
Inessa05 [86]
28.150=26.5 is the amount you can spend on water. so 26.5/1.29= 20.54  so you can buy 20 bottles of water

4 0
2 years ago
Solve plzzzzz<br> -7+11p=3p-47
Setler79 [48]

Answer:

p = -5

Step-by-step explanation:

5 0
3 years ago
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Your grandmother has given you a gift of $1500 for your birthday. You are thinking about your future and
Setler [38]

Answer:

B

Step-by-step explanation:

if you put the rest of your money in a savings account you can use that money for your college fund or maybe buy a car ect.

4 0
2 years ago
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Question 2 of 10<br> 1 Point<br> Round 849 to the nearest ten.
Setler79 [48]

Answer:

850

Step-by-step explanation:

8 0
3 years ago
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