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guapka [62]
3 years ago
14

My bro needs help with this plz help

Mathematics
2 answers:
zhuklara [117]3 years ago
8 0

Answer:

36 yellow jellybeans

Step-by-step explanation:

red jelly beans will be 3x

yellow jellybeans will be 4x

(3x - 3) / (4x - 6) = 4 / 5

= 5 (3x - 3) = 4 (4x - 6)

= 15x - 15 = 16x - 24

= 15x - 16x = (-24) + 15

= -x = -9

= x = 9

So now to find yellow jelly beans you do 4x

9x4=36

Originally there were 36 yellow jellybeans

Hope it wasn't confusing and hope this helps :)

bearhunter [10]3 years ago
3 0

Answer:

28 jelly beans

Step-by-step explanation:

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15. A rectangle has a length of 2x - 1 and a width of 3x + 7. Find the perimeter of this rectangle.
andrew11 [14]

Answer:

10x + 12 and 6x² + 11x - 7

Step-by-step explanation:

The perimeter (P) of a rectangle is calculated as

P = 2l + 2w ( l is length and w is width )

   = 2(2x - 1) + 2(3x + 7) ← distribute parenthesis

    = 4x - 2 + 6x + 14 ← collect like terms

     = 10x + 12

--------------------------------------------------

The area (A) of a rectangle is calculated as

A = lw

   = (2x - 1)(3x + 7) ← expand using FOIL

    = 6x² + 14x - 3x - 7 ← collect like terms

    = 6x² + 11x - 7

7 0
3 years ago
A rectangular swimming pool measures 7.5 m by 4.5 m. It is completely surrounded by a fence parallel to each edge of the pool an
Illusion [34]

The total length of the fence is 48 m if the rectangular swimming pool measures 7.5 m by 4.5 m.

<h3>What is rectangle?</h3>

It is defined as the two-dimensional geometry in which the angle between the adjacent sides are 90 degree. It is a type of quadrilateral.

It is defined as the area occupied by the rectangle in two-dimensional planner geometry.

The area of a rectangle can be calculated using the following formula:

Rectangle area = length x width

It is given that:

A rectangular swimming pool measures 7.5 m by 4.5 m.

It is completely surrounded by a fence parallel to each edge of the pool and at a distance of 3 m from each edge of the pool.

The total length of the fence = 2(7.5+3×2 + 4.5+3×2)

The total length of the fence = 2(7.5+6 + 4.5+6)

The total length of the fence = 2(24)

The total length of the fence = 48 m

Thus, the total length of the fence is 48 m if the rectangular swimming pool measures 7.5 m by 4.5 m.

Learn more about the rectangle here:

brainly.com/question/15019502

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4 0
2 years ago
a particular species of bamboo can grow up to 91 centimeters in a day. how fast is this in inches per hour
solniwko [45]
I would probably just do 91 times 60 since 60 min is 1 hour
8 0
3 years ago
Help please on these thanks
tia_tia [17]
1. i cant see it 2. g=68 h=112 3. i=111 j=69 4. m=37 k=37 l=143
3 0
2 years ago
Read 2 more answers
Write as an equation: If a number is decreased by five, and then the result is multiplied by two, the result is 26.
kvasek [131]

Answer:

18

Step-by-step explanation:

Because when 18-5=13 x 2=26

5 0
2 years ago
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