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Talja [164]
3 years ago
14

the width of a rectangle is 15 cm less than the length. the perimeter is 98 cm. Find the rectangles dimensions

Mathematics
1 answer:
Mice21 [21]3 years ago
6 0

Answer:

Half of perimeter (or L+ W) is:

98/2= 49 (cm)

L- W= 15

L+ W= 49

L= (49+ 15)/2= 32

W= (49-15)/2= 17

The length is 32 cm and the width is 17 cm~

Step-by-step explanation:

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If X=20°, Y=135°, what will Z be
Veronika [31]

The value of Z would be 225°

<h3>What is the angle at a point?</h3>

The angle at a point are angles that add up to 360°

Thus, X + Y + Z = 360°

X = 20°

Y = 135°

Then, Z = 360° - X - Y

Z = 360° - 20° + 135°

Z = 360° - 155°

Z = 205°

Therefore, the value of Z is 205°

Learn more about angle at a point here:

brainly.com/question/24839702

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6 0
2 years ago
Please help!!!! The height of a triangle is 9m less than its base. The area of the triangle is 56m^2. Find the length of the bas
Crazy boy [7]
Area = 1/2 b * h
h = b - 9
b = b
Area = 56cm^2

Area = 1/2 (b - 9) * b
56 = 1/2 (b^2 -9b)
112 = b^2 - 9b 
b^2 - 9b - 112 = 0
b = 16 and therefore the height is
h =  26 - 9 = 7

Check 
Area = 1/2 * 16 * 7
Area = 8 *7
Area = 56 which checks. 
3 0
4 years ago
Tim had $150 to spend on 3 pairs of pants. After buying
Aneli [31]

Answer:D

Step-by-step explanation: 3 represents the pants, x is the price of the pants, and the 30 is the remaining money. All this combined =150.

5 0
4 years ago
La suma de las edades de tres personas es 127años. La mayor tiene 30 años mas que la menor y la del intermedio 26 menos que la m
Over [174]

Answer:

La mayor tiene 61 años.

Step-by-step explanation:

Sea x,y,z la edad de la mayor, intermedio y la menor respectivamente.

Tenemos las siguientes ecuaciones:

x+y+z=127 (la suma de las edades es 127)

x = z+30 (la mayor tiene 30 años más que la menor)

La frase "y la del intermedio 26 menos que la menor" no tiene sentido, puesto que esto implicaría que la del intermedio es menor que la menor. Luego se asume que la frase ha de ser "y la del intermedio 26 menos que la mayor"

x-26 = y (la del intermedio tiene 26 menos que la mayor).

La segunda ecuación se traduce a x-30 =z. Si reemplazamos todo en la primera ecuación obtenemos

x+(x-26)+(x-30) = 127

Obtenemos la ecuación

3x-56 = 127

Sumando 56 a ambos lados y dividiendo por 3, obtenemos

x = \frac{127+56}{3} = 61

Es decir la mayor tiene 61 años.

6 0
3 years ago
Hiii please help i’ll give brainliest thanks
Dmitry_Shevchenko [17]

Answer:

5 Is the answer

Step-by-step explanation:

A constant (number),a variable or product of a number and variable is called term ,coefficient id the number in the term. eg :-in 3a the coefficient is 3

6 0
3 years ago
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