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sasho [114]
3 years ago
15

I need help with fractions

Mathematics
2 answers:
goldenfox [79]3 years ago
8 0

Answer:

what do u need help with

Step-by-step explanation:

bezimeni [28]3 years ago
5 0

Answer:

ok

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
I need big help, what are the step by step math problem and the answer to (18/-2)^2?
Serggg [28]

Hii :))

\tt \: ( \frac{18}{ - 2} ) ^{2}  \\   \tt \: =  (-  \frac{18}{2} ) ^{2}  \\  \tt =  \frac{-18 \times -18}{-2 \times -2}  \\  =    \tt  \frac{324}{4}  \\ = \boxed{\tt\:81}

﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋

\overbrace{ \underbrace{ \sf \: \infty  \:  Carry \: on \: Learning \:  \infty }}

ᴛʜᴇᴇxᴛʀᴀᴛᴇʀᴇꜱᴛʀɪᴀʟ

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3 years ago
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Four students have summer jobs. The table shows how much each student earns after working a certain number of hours. Which stude
vlada-n [284]

Answer:

C Jacob

Step-by-step explanation:

Alfredo: 157.5/18 = 8.75

Helene: 198/24 = 8.25

Jacob: 142.5/15 = 9.53

Leonna: 111/12 = 9.25

7 0
3 years ago
Reduce -8 + b^2 by 5 + b^2
ozzi

Answer:-13

Step-by-step explanation:

-8 + b^2 - 5 - b^2

=============

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Nine dollars each hour
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I don’t understand your question
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