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givi [52]
3 years ago
7

Is 14/21 proportional

Mathematics
2 answers:
pantera1 [17]3 years ago
8 0

Answer

Yes

both divide by 7

2/3

Step-by-step explanation:

Another example if it was 15/10

Then yes

Both divide by 5

so

3/2

julia-pushkina [17]3 years ago
3 0

Answer: yes

Step-by-step explanation:

it reduces to 2/3

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A group of students are planning a mural at a wall the rectangular wall has dimensions of (6x+7) by (8x+5) and they are planning
zvonat [6]

Answer: 46x^2+73x+15

Step-by-step explanation:

The area of a rectangle can be calculated with the formula:

A=lw

l: the length of the rectangle.

w: the width of the rectangle.

The area of the remaning wall after the mural has been painted, will be the difference of the area of the wall and the area of the mural.

Knowing that the dimensions of the wall are (6x+7) by (8x+5), its area is:

A_w=(6x+7)(8x+5)\\\\A_w=48x^2+30x+56x+35\\\\A_w=48x^2+86x+35

As they are planning that the dimensions of the mural be (x+4) by (2x+5), its area is:

A_m=(x+4)(2x+5)\\\\A_m=2x^2+5x+8x+20\\\\A_m=2x^2+13x+20

Then the area of the remaining wall after the mural has been painted is:

A_{(remaining)}=A_w-A_m\\\\A_{(remaining)}=48x^2+86x+35-(2x^2+13x+20)\\\\A_{(remaining)}=48x^2+86x+35-2x^2-13x-20\\\\A_{(remaining)}=46x^2+73x+15

8 0
4 years ago
Ms. Brack wants to hang a bulletin board with
Eduardwww [97]

Answer:

He needs 8.75 ft² polka dot paper to cover the board.

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4 years ago
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Step-by-step explanation:

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3 years ago
Solve using quadratic equation by factoring.<br><br> x^2+8x=65
VMariaS [17]
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6 0
3 years ago
Read 2 more answers
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