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Genrish500 [490]
3 years ago
5

Work out the hcf of 600 and 128

Mathematics
1 answer:
Aleks04 [339]3 years ago
7 0

The answer is 8

You work out all the factors for both 600 and 128 and they are :

600 -1,600,2,300,3,200,4,150,5,120,6,100,8,75,10,60,12,50,15,40,20,30,24 and 25

128-1,128,2,64,4,32,8 and 16

And you see what is the highest common factor which is 8

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Elimination method<br> 4x-2y=48<br> 2x+6y=-18
yulyashka [42]
4x-2y=48\\ \\ 2x+6y=-18

First we'll multiply the second equation by -2


-2\cdot (2x+6y)=-2\cdot -18\\ \\ -4x-12y=36

Now let's add the new equation and the first one.

(4x-2y)+(-4x-12y)=48+36\\ \\ 4x-4x-2y-12y=48+36\\ \\ -14y=84\\ \\ y=\frac { 84 }{ -14 } \\ \\ y=-6

We found y's value. We'll plug it in one of the equations to find x's value.

y=-6\\ \\ 4x-2y=48\\ \\ 4x-2\cdot -6=48\\ \\ 4x+12=48\\ \\ 4x=48-12\\ \\ 4x=36\\ \\ x=\frac { 36 }{ 4 } \\ \\ x=9

Solution ;

(9, -6)


4 0
3 years ago
Read 2 more answers
Write the standerd form for thirty thousand,four hundred five and three thousandths.
sveta [45]
30 Thousand: 30,000
4 Hundred and Five: 405
3 Thousandths: 3/1000
Final Answer; 30,405 \frac{3}{1000}
6 0
3 years ago
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Simplify the expression-2.3 + (-5.7). On the test when maureen simplified the expression she got -3.4. What mistake did maureen
Hoochie [10]

Answer:

see explanation

Step-by-step explanation:

- 2.3 + (- 5.7)

reminder that + (- ) = -

To obtain - 3.4 it is likely that she added 2.3 to - 5.7

The solution is

- 2.3 - 5.7 = - 8

4 0
3 years ago
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The heights of apricot trees in an orchard are approximated by a normal distribution model with a mean of 18 feet and a standard
Ulleksa [173]

Answer:

0.9544

Step-by-step explanation:

We are given that mean=18 and standard deviation=1 and we have to find P(16<X<20).

P(16<X<20)=P(z1<Z<z2)

z1=(x1-mean)/standard deviation

z1=(16-18)/1=-2

z2=(x2-mean)/standard deviation

z2=(20-18)/1=2

P(16<X<20)=P(z1<Z<z2)=P(-2<Z<2)

P(16<X<20)=P(-2<Z<0)+P(0<Z<2)

P(16<X<20)=0.4772+0.4772=0.9544

The probability that the height of a tree is between 16 and 20 feet is 95.44%

5 0
3 years ago
Im serious this time! This on is the last one!
Virty [35]
42. they’re across from each other
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