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Dafna1 [17]
3 years ago
8

Math help please What is the value for y?

Mathematics
1 answer:
Nat2105 [25]3 years ago
7 0

Answer:

y =14

Step-by-step explanation:

we know that <a = <b since it is an isosceles triangle

<a = <b = 50

the triangle add to 180 degrees

<a + <b + <c =180

50 + 50 + <c = 180

add like terms

100 + <c = 180

subtract 100 from each side

<c = 180-100

<c = 80

<c = 5y+ 10

80 = 5y+10

subtract 10 from each side

80 -10 = 5y+10-10

80-10 = 5y

70 = 5y

divide by 5

70/5 =5y/5

14 = y

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PLEASE HELP! i suck at math
vova2212 [387]

the answer is 2.5

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7 0
2 years ago
Un terreno de 4200 metros cuadrados de superficie se quiere dividir en dos lotes de manera que el lote menor sea tres cuartas pa
lions [1.4K]

Answer:

El lote menor tendrá 1800 m^2

El lote mayor tendrá 2400 m^2

Step-by-step explanation:

Definamos las variables:

M = superficie del lote mayor

m = superficie del lote menor.

Sabemos que el terreno tiene en total 4200 m^2

Entonces:

M + m = 4200 m^2.

Y queremos que el lote menor sea 3/4 del lote mayor, entonces:

m = (3/4)*M

Podemos reemplazar esto en la ecuación de arriba para obtener:

M + ( (3/4)*M) = 4200 m^2.

Y ahora podemos resolver esto para M

M + (3/4)*M = 4200m^2

M*(1 + 3/4) = 4200m^2

M*(4/4 + 3/4) = 4200 m^2

M*(7/4) = 4200m^2

M = (4/7)*(4200m^2) = 2400m^2

Esto significa que la superficie del mayor lote es 2400 m^2

Y la superficie del menor se puede obtener con la ecuación:

m = (3/4)*M

m = (3/4)*2400m^2 = 1800m^2

La superficie del lote menor es 1800m^2

4 0
3 years ago
Terry's essay has 9 more pages than staceys essay. If s represents the number of pages in staceys essay, write an expression for
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Answer:s+9

Step-by-step explanation:

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True.
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502/1000
251/500
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