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3 years ago

Find two numbers a+b is -4 and difference a-b is 4 what's your answer

Mathematics

1 answer:

Trava [24]3 years ago

6 0

Answer:

a=0, b=-4

Step-by-step explanation:

a+b=-4.....(1)

a-b=4.......(2)

(1)+(2): 2a=0

a=0

0+b=-4

b=-4

(a, b) =(0,-4)

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a 120 lb. person would weigh about 20 lb. o. the earth's moon. A 150 lb. person would weigh 28 lb. on lo, a moon of Jupiter. Use

Naddik [55]

I think it would look like this 20:28 or 120:150

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4 years ago

U'LL GET BRAINLIEST IF U ANSWER FIRST

Tanzania [10]

Answer:

$\boxed{\bold{a+2b}}$

Explanation:

<u>Simplify expression to find its equivalent</u>

<u></u>

Expand $\bold{2\left(a+2b\right): \ 2a+4b}$

= $\bold{2a+4b-a-2b}$

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Mordancy.

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3 years ago

El precio de costo de “x” artículos es 60x + 4 000, además el precio de venta de los mismos es 80x. Determinar la cantidad de ar

Citrus2011 [14]

Answer:

800 artículos.

Step-by-step explanation:

Sea x = la cantidad de artículos vendidos

De la pregunta,

Precio de costo = 60 x + 4000

Venta (precio de venta) = 80x

También nos dieron ganancias como S12000

Para determinar la ganancia

Precio de venta: precio de costo = beneficio (cuando el precio de venta es más alto que el precio de costo)

Por lo tanto,

12,000 = 80x - (60x + 4000)

12,000 = 80x - 60x - 4000

Recolectando términos similares

12,000 + 4,000 = 80x - 60x

16,000 = 20x

x = 16,000 / 20

x = 800

Por lo tanto, la cantidad de artículos que se venderán si desea obtener una ganancia de S12,000 es de 800 artículos.

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3 years ago

given the following linear function sketch the graph of the function and find the domain and range. f(x)=-5x+4

velikii [3]

It's a linear function. We need only two points to sketch the graph.

f(x) = -5x + 4 → y = -5x + 4

for x = 0 → y = -5(0) + 4 = 0 + 4 = 4 → (0, 4)

for x = 1 → y= -5(1) + 4 = -5 + 4 = -1 → (1, -1)

The domain and the range is the set of all real numbers.

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3 years ago

A parallelogram has symmetry with respect to the point of intersection of its diagonals. t/f?

Anna007 [38]

It is true that a parallelogram has symmetry with respect to the point of intersection of its diagonals.

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3 years ago