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Cerrena [4.2K]
3 years ago
6

" align="absmiddle" class="latex-formula">
7 \:  \frac{1}{2}
5842 \div 23
And show working so I will now if you used a calculator or not​
Mathematics
1 answer:
sammy [17]3 years ago
8 0

Answer:

7 \frac{2}{3}=\frac{7*3+2}{3}=\frac{23}{3}

7 \: \frac{1}{2}=\frac{7*2+1}{2}=\frac{15}{2}

5842 \div 23=254

You might be interested in
I^32=......................
lbvjy [14]
I^32 = (i^4)^8 and i^4 = 1

so (i^4)^8 =1^8 = 1

The trick on all questions like this is to get as many i^4’s out of the way, since they’re all just 1s.
5 0
3 years ago
The sum of the squares of three consecutive integers is 509. Determine the integers.
GalinKa [24]

Answer:

12, 13, 14

Step-by-step explanation:

Denote the integers as:

x

x+1

x+2

The sum of their squares, so that would be;

(x^(2)) + (( x + 1 )^(2)) + (( x + 2 )^(2)) = 509

write out the squares

x^2 + x^2 + 2x + 1 + x^2 + 4x + 4 = 509

combine like terms

3x^2 + 6x + 5 = 509

inverse operations

3x^2 + 6x + 5 = 509

                -5     -5

3x^2 + 6x = 504

factor

3x^2 + 6x = 504

3 ( x^2 + 2x ) =504

Inverse operations

3 ( x^2 + 2x ) = 504

/3                       /3

x^2 + 2x = 168

Factor again

x ( x + 2 ) = 168

At this point, it should be obvious that x is 12 (because 12 * 14 = 168)

So now substitute back into the consecutive numbers

x = 12

x + 1 = 13

x + 2 = 14

6 0
3 years ago
A man has a mass of 120kg, he reduces his mass by 15%, how many kilograms is that​
Varvara68 [4.7K]

Answer:

your answer should be 102kg i could be wrong.

5 0
2 years ago
Read 2 more answers
Question 2 (1 point) These allow electricity to flow easily through them (think copper and aluminum). (Lessons 5.01-5.03) Electr
I am Lyosha [343]

Answer:

copper and illuminum

Step-by-step explanation:

i got it right on the test

3 0
3 years ago
1. One half of 1% converted to a decimal is . 2. 0.184 rounded to the hundredths place is . 3. The first three place values to t
solmaris [256]

Answer:

.Yes 4.

1. One half of 1%

1% is the same as 1/100

= 0.01

Half of it means (1/2 of if)

= (1/2)×0.01

= 0.005

2.O.184 rounded to hundredth place

hundredth place is two decimal places behind the decimal point

A third decimal point, we have 4 which cannot be rounded up

Therefore number upto hundredth place shall be

0.18

3. Yes,

The first place to the right of decimal point is called tenth place

Similarly second point to the right of decimal point is called hundrdth place

Third place is thousandth place

4. 3/25 = 3×10/25×10 =6/50 =0.12

5 0.45= 45/100 5 goes in 45 9 times and 5 goes in 100, 20times= 9/20

6.$39,918.23 to nearest thousands is $39,000

7.5% is the same as 5/100 =1/20

8. 0.04 to percentage means

0.04 × 100= 4%

9.0.727935 converted to nearest thousands is 0.7279

10.325/790 converted to fraction is 0.4113

To nearest hundreds is 0.411

7 0
3 years ago
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