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oksano4ka [1.4K]
3 years ago
11

12/7 = k/8 Solve for k

Mathematics
1 answer:
timama [110]3 years ago
4 0

Answer:

13 5/7

Step-by-step explanation:

Rewrite the equation as  

k

8

=

12

7

.

k

8

=

12

7

Multiply both sides of the equation by  

8

.

8

⋅

k

8

=

8

⋅

12

7

Simplify both sides of the equation.

Tap for more steps...

k

=

96

7

The result can be shown in multiple forms.

Exact Form:

k

=

96

7

Decimal Form:

k

=

13.71428571

…

Mixed Number Form:

k

=

13

5

7

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goblinko [34]

Answer:

Molly: 21

Page: 14

Demi: 7

Step-by-step explanation:

Hope this helps! ;)

4 0
3 years ago
a square painting has an area of 81x^2-90x-25. A second square painting has an area of 25x^2+30x+9. What is an expression that r
galina1969 [7]

Answer:

The answer in the procedure

Step-by-step explanation:

Let

A1 ------> the area of the first square painting

A2 ---->  the area of the second square painting

D -----> the difference of the areas

we have

A1=81x^{2}-90x-25

A2=25x^{2}+30x+9

case 1) The area of the second square painting is greater than the area of the first square painting

The difference of the area of the paintings is equal to subtract the area of the first square painting from the area of the second square painting

D=A2-A1

D=(25x^{2}+30x+9)-(81x^{2}-90x-25)

D=(-56x^{2}+120x+34)

case 2) The area of the first square painting is greater than the area of the second square painting

The difference of the area of the paintings is equal to subtract the area of the second square painting from the area of the first square painting

D=A1-A2

D=(81x^{2}-90x-25)-(25x^{2}+30x+9)

D=(56x^{2}-120x-34)

4 0
3 years ago
8-5x =2x + 20 <br> Simplify<br> I’ll give brainliest
kobusy [5.1K]

Answer:

X= - 12/7 i hope it is helpful have a nice day if you want steps i will show you

6 0
3 years ago
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A food cooperative is a business that usually offers special prices on locally grown food and produce. Some are clubs and some a
Hoochie [10]

Answer:

The indifference point is 8 weeks.

Step-by-step explanation:

<u>First, we establish the total cost formula for each:</u>

x= number of weeks

Club:

Total cost= 20 + 15*x

Retail:

Total cost= 17.5*x

<u>Now, we equal both formulas and isolate x:</u>

20 + 15x = 17.5x

20 = 2.5x

8=x

The indifference point is 8 weeks.

<u>Prove:</u>

Total cost= 20 + 15*8= $140

Total cost= 17.5*8= $140

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2 years ago
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Answer:

It's a <em>(space) </em>lot<em>,... </em>haha na I just kidding,... you're good,... I mean I'm not kidding cause it is correct,... but you are good,... like totally cool,... anyway,...

Step-by-step explanation:

By x the just mean <em>what number,... </em>so,...

<em>what number </em>+ 6 = 7,

6 + <em>what number = 7,</em>

2 + <em>what number </em>+ 5 = 7,

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