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elena-14-01-66 [18.8K]
3 years ago
9

How many solutions does this linear system have?

Mathematics
1 answer:
noname [10]3 years ago
4 0

Answer:

No solution

Step-by-step explanation:

These are two, parallel lines. You can tell because they have the same slope.

the first line is

y = -.5x + 4

the second line, when rewritten is

x + 2y = -8

2y = -x - 8

y = -.5x - 4

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Please help!!!!!! ill give you brainliest!
olga2289 [7]

Answer:

The team made x<u><</u>53 points total.

Step-by-step explanation:

1/4+1/10 is 7/20 or 0.35 in decimal form. If they both together scored 21 points then you can add another 7/20 (21 points) and have 14/20 (42 points). You have 6/20 more left. If you can solve what 1/20 could be then you would find the answer. Does this helps?

3 0
3 years ago
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Suppose you know that Mr. and Mrs. Vincent have at most eight children. One day you happen to meet two girls who were the Vincen
lianna [129]

Answer:

The number of children are 4 out of which 3 are girls

Step-by-step explanation:

Data provided in the question:

P(Two randomly selected children are girls) = \frac{1}{2}

now,

let the number of children be 'n'

the number of girls be 'x'

thus,

P(Two randomly selected children are girls) = \frac{^xC_2}{^nC_2} = \frac{1}{2}

also,

^nC_r = \frac{n!r!}{(n-r)!}

thus,

\frac{\frac{x!2!}{(x-2)!}}{\frac{n!2!}{(n-2)!}} = \frac{1}{2}

or

\frac{x(x-1)}{n(n-1)}=\frac{1}{2}

or

2x(x-1) = n(n-1)

now

for x = 3 and n = 4

i.e

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hence, the relation is justified

therefore,

The number of children are 4 out of which 3 are girls

3 0
3 years ago
Juan Ramirez sells suits in a major department store on weekends. He earns a commission of 5 percent on the first ten suits, and
Zepler [3.9K]
So, the first 10 suits came with a commission of 5%, so for each suit it was:

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 \frac{250*8}{100} = \frac{25*8}{10} = \frac{25*4}{5} =20

for each suit, and 60 in total.

his total comission was 125+60=185 dollars.

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3 years ago
Lisa is a fitness instructor. For one month, she recorded the number of people who attended her aerobics class. She then used he
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I’m pretty sure it a
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There are 36 members in the math club Allison brought 81 Browning sister with all the members how many brownies does each member
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