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3 years ago

A line passes through the point (-5, 2) and has a slope of 3.

Mathematics

2 answers:

ELEN [110]3 years ago

3 0

Answer:

y-2=3(x+5)

Step-by-step explanation:

so point slope form is y-y1=m(x-x1)

x1 and y1 are your ordered pair: (-5,2)

M is the slope.

All you have to do is plug in the numbers!

algol133 years ago

3 0

Y = mx+c

2 = 3(-5) + c
c = 2 + 15
c = 17

y = 3x + 17

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Aunty Joan packs a packet of sweets to Alice and Olivia. Alice and Olivia share sweets in the ratio 7:3. Alice gives 3 sweets to

aivan3 [116]

Initially, Alice had 28 sweets and Olivia 12 sweets.

Step-by-step explanation:

First assume that Aunty Joan has x number sweets.

Alice and Olivia shared the x sweets in a ration of 7:3, this means

Alice had 7/10 x sweets and Olivia had 3/10 sweets.

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Equate the number of sweets for Alice in the two cases, which is

$\frac{5}{8}x=\frac{7}{10} x-3\\ \\\frac{7}{10} x-\frac{5}{8} x=3\\$

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So there were 40 sweets at first

Using the ratio of 7:3 then

Alice had 7/10 *40 = 28 sweets

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Learn More

Ratio : brainly.com/question/11095585

Keywords : Ratio

#LearnwithBrainly

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3 years ago

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3 years ago

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bearhunter [10]

Answer:

1/11

Step-by-step explanation

There are 12 marbles in the bag. When we first pick we have 4 blue marbles. So 4 blue marbles/12 random marbles. When we pick blue and noted, there are 3 marbles in the bag because of we didn't put it back. So when we choose again there are 11 marbles and 3 blue marbles in the bag. Choosing a blue one case is 3/11.

The last part of this case is happening as a chain. So we need to multiply our two answers.

=4/12*3/11

=1/3*3/11

=1/11

7 0

2 years ago