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marysya [2.9K]
3 years ago
5

Help............................................

Mathematics
1 answer:
BigorU [14]3 years ago
4 0
Perimeter = lenght×2 + width×2
Let x represent the width
80 = 2(2x - 5) + 2x
Find for x
80 = -10 + 4x + 2x
80 + 10 = 6x
90 = 6x
90/6 = x
x = 15

The width is 15 cm
The length is 2×15 - 5 = 25
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Write the product of the reciprocal of 5 and 5g-20
Naddika [18.5K]

Answer:

reciprocal \: of \: 5 =  \frac{1}{5}  \\ reciprocal \: of \: (5g - 20) =  \frac{1}{5g - 20}  \\ product \: of \: reciprocals = ( \frac{1}{5} )( \frac{1}{5g - 20 } ) \\  =  \frac{1}{5(5g - 20)}  \\  =  \frac{1}{(25g - 100)}  \\ divide \: by \: 25 \: on \: everything \: (optional) \\  =  \frac{(1 \div 25)}{(25g \div 25) - (100 \div 25)}  \\  =  \frac{0.04}{g - 4}

3 0
3 years ago
Simplify the following expression:<br> 3[(x^3– 7 x + 1) – (x+ 4)]
Alona [7]

Answer:

15 - 9

Step-by-step explanation:

3[( 3x - 7x plus 1) - (x plus 4)]

3[(-4x plus 1) - x-4

3[-4x plus 1 -x-4

3[-4x-x plus 1-4]

3[fivex -3]

fifteen x - 9

5 0
3 years ago
Please help me thank you.
Anni [7]
The relevant formula for the area of the triangle is
.. A = (1/2)ab*sin(C)
.. = (1/2)*(2.75 mi)*(1.32 mi)*sin(35°)
.. ≈ 1.04 mi^2

The 4th selection is appropriate.
3 0
3 years ago
Use the diagram to solve for x Hint: set them equal to each other *<br> Your answer
nadya68 [22]

Answer:

x = 9

Step-by-step explanation:

7x - 1 = 62

add  on to each side and you get 7x = 63

divide both sides by seven to get x = 9

5 0
3 years ago
Read 2 more answers
The sum of two numbers is 76. Thelarger number is 16 more than 2 times the smaller number. Find the numbers.x + y = 76; x = 16 +
Pavel [41]

ANSWER

EXPLANATION

Given information

The sum of the two numbers is 76

The larger number is 16 more than 2 times the smaller number

Let the two numbers be x and y

x ----> Larger number

y ----> smaller number

To find the value of x and y, follow the steps the below

Step 1: Write the algebraic expressions for the statement given

The sum of the two numbers is 72

Mathematically, this can be expressed as

\text{ x + y = 72 ----------- equation 1}

Also, the larger number is 16 more than twice

5 0
1 year ago
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