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Gwar [14]
3 years ago
9

10x – 4y = 6 10x + 3y = 13

Mathematics
2 answers:
marissa [1.9K]3 years ago
8 0
The answer is (1,1). 1 is x and 1 is y
Tatiana [17]3 years ago
6 0

Note that, the effect of elimination method on equation 2 caused the sign of the coefficients to change such that

10x + 3y = 13 becomes -10x - 3y = - 13.

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Forty-seven percent of fish in a river are catfish. Imagine scooping out a simple random sample of 25 fish from the river and ob
WARRIOR [948]

Answer:

Therefore the correct option is a.) The standard deviation is 0.0998. The 10% condition is met because it is very likely there are more than 250 catfish in the river.

Step-by-step explanation:

i) Let p = 0.47

ii) therefore q = 1 - 0.47 = 0.53

iii) sample size, n =25

iii) standard deviation = \sqrt{\frac{p \times q}{n} }  = \sqrt{\frac{0.47 \times 0.53}{25} } = 0.0998

Therefore the correct option is

a.) The standard deviation is 0.0998. The 10% condition is met because it

    is very likely there are more than 250 catfish in the river.

8 0
3 years ago
How do i make a equation with infinite solutions?
Igoryamba

Essentially, what you need to do is ensure that both sides cancel each other out to make 0 = 0

An example:

2(x + y) + 4 = (4x + 4y + 8)/2

2x + 2y + 4 = 2x + 2y + 4

0 = 0

5 0
4 years ago
En las olimpiadas de Matemática. Roció represen a su colegio. La prueba consistía en 60 problemas. Cada respuesta correcta valía
PtichkaEL [24]

Answer:

Rocío respondió 43 preguntas correctas y 17 incorrectas.

Step-by-step explanation:

Dado que en las olimpiadas de Matemática, Rocío representó a su colegio, y la prueba consistía en 60 problemas, de los cuales cada respuesta correcta valía 4 puntos y por cada respuesta incorrecta había un punto en contra, y luego del examen, Rocío obtuvo un puntaje de 155, y ella respondió todas las preguntas y desea saber cuantas fueron correctas y cuantas incorrectas, para determinar dicha duda se debe realizar el siguiente calculo:

60 x 4 = 240

40 x 4 - 20 = 140

45 x 4 - 15 = 165

42 x 4 - 18 = 150

43 x 4 - 17 = 155

Por lo tanto, Rocío respondió 43 preguntas correctas y 17 incorrectas.

5 0
3 years ago
Find the slope of a line parallel to this equation 7x=-3y+15?
Vera_Pavlovna [14]
It is postive 1/3 cause you do oppsotise recipical
5 0
3 years ago
Read 2 more answers
A pound of apples costs $1.98 how much will 0.75 pounds cost ?
Alina [70]

Given:

Cost of one pound of apples = $1.98

To find:

The cost of 0.75 pound of apples.

Solution:

We have,

Cost of one pound = $1.98

So, cost of 0.75 pound of apples = 0.75 × cost of one pound of apples

\text{Cost of 0.75 pound of apples}=0.75\times 1.98

\text{Cost of 0.75 pound of apples}=1.485

Therefore, the cost of 0.75 pound of apples is $1.485.

5 0
4 years ago
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