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4 years ago

7 less than two times the sum of 6 and a

Mathematics

1 answer:

miss Akunina [59]4 years ago

7 0

Answer:

6 and 20

Step-by-step explanation:

20-7=13

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2/-3 divided by -1 2/7 = <br> pls explain the answer

katen-ka-za [31]

Answer:

$\frac{14}{27}$

Step-by-step explanation:

$-1\frac{2}{7} = -\frac{9}{7}$
Plug -9/7 in: $-\frac{2}{3}$ ÷ $-\frac{9}{7}$
-2/3 ÷ -9/7 = 2/3 ÷ 9/7 = 2/3 × 7/9
$\frac{2}{3}$ × $\frac{7}{9} = \frac{14}{27}$

I hope this helps!

5 0

3 years ago

Read 2 more answers

The mean of 5,x,10,6,12 is 9. Find x

Wewaii [24]

Answer:

Solution,

Summation FX= 5+10+6+12+X

=33+x

N(total no.of items)=5

Now,

Mean= summation FX/N

or 9=33+X/5

or 9*5=33+X ( cross multiplication)

or 45=33+X

or -x=33-45

or -x=-12

X=12

Hope this helps...

Good luck on your assignment..

4 0

4 years ago

Read 2 more answers

Find the equation of the line that passes through the points (2, 8) and (-2, 6).

OLEGan [10]

The correct answer is C. y = 1/2x + 7

In order to find this, we first have to look for the slope. We can do that by using the slope formula below.

m(slope) = (y2 - y1)/(x2 - x1)

m = (8 - 6)/(2 - -2)

m = 2/4

m = 1/2

Now we can solve using the slope intercept form and a given point.

y = mx + b

8 = 1/2(2) + b

8 = 1 + b

7 = b

Now we can put these into the equation and model as y = 1/2x + 7

4 0

4 years ago

X - 3.5 = -3.1<br> solve for x.

uranmaximum [27]

Answer:

0.4

Step-by-step explanation:

The numbers -3.5 and -3.1 have a difference in value of 0.4

An easy way to look at this is to remove the decimal points. 35 - 31 is equal to 4, so that would make the difference 0.4.

Because both numbers are negative, the x must be a positive.

Therefor, 0.4 - 3.5 = -3.1

6 0

3 years ago

Read 2 more answers

I don't really get it.

geniusboy [140]

Answer:

Step-by-step explanation: <u><em>lcf~ the shortest amount it takes us to get to the desired number</em></u>

let's start with 9, we know 9x2=18 so now we go backwards down the number line to see if and of the numbers times another number will equal 18 also

so 8~ we have 8, 16,24~ no 18 so its not 8

now 7~ 7,14,21~no 18 so not 7

6~ 6, 12, 18~yes it took us 3 times to get to 18, but lets see if there is another

5~ 5,10,15,20~no 18 not 5 either

4~ 4,8, 12, 16, 20~ no 18, not 4 either

3~ 3,6,9,12,15,18~ yes but it took us 6 times to get to 18

now 2~ 2,4,6,8,10,12,14,16,18~ yes but it took us 9 times

so the answer would be 6

4 0

3 years ago