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mr_godi [17]
3 years ago
7

Sara hina and arsalan has rupees 930 if Sara has 7 more than Hina and arsalan has 3 times what sara has how much do they have

Mathematics
1 answer:
Papessa [141]3 years ago
3 0

Answer:

Step-by-step explanation:

Let us represent:

Number of rupees that:

Sara has = x

Hina = y

Arsalan = z

Sara,Hina and arsalan has rupees 930

x + y + z = 930..... Equation 1

if Sara has 7 more than Hina

x = y + 7

y = x - 7

Arsalan has 3 times what sara has

z = 3x

We substitute x - 7 for y and 3x for z in Equation 1

x + y + z = 930..... Equation 1

x + x - 7 + 3x = 930

5x - 7 = 930

5x = 930 + 7

5x = 937

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geniusboy [140]

Answer:

1. f

2. a

3. b

4. e

5. c

6. d

1. I figured out how to order them by using the distance formula to calculate how far each point was, from the other.

2. (1, -10) and (1, -11)

3. (1, -10) and (1, 11)

Step-by-step explanation:

<u>Using Letter A, as example:</u>

To calculate the distance between the points, you use the formula:

d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

d = \sqrt{(2-2)^2+(10-4)^2}

d = \sqrt{0 + 36}

d = 6

Just do the same thing (plug in the numbers into the formula), and you should be able to get the correct answers.

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3 years ago
If y varies directly with x and y = 5 when x = 4, find the value of y when x = -8.
lilavasa [31]

Answer:

-10

Step-by-step explanation:

y= kx

or, k= y/x

or, k = 5/4

k = 1.25

y= kx = 1.25 × (-8) = -10

8 0
3 years ago
Which set of fractions is ordered from least to greatest?
vesna_86 [32]

Answer:

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AveGali [126]

Answer:

1/2

Step-by-step explanation:

Pick two points

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The slope is

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3 years ago
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Lemur [1.5K]

Answer:

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Step-by-step explanation:

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We have this as;

(6 * x) - (6 * 4y)

= 6x - 24y

3 0
3 years ago
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