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Fofino [41]
3 years ago
7

in science class mrs.moore students were directed to weight a 300 gram mass on the balance scale tina weighed the object and rep

orted 328 grams
Mathematics
1 answer:
IrinaK [193]3 years ago
4 0

Answer: 9 1/3%

Step-by-step explanation:

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Arun spent 25% of his pocket money and has Rs 125 left how much had he at first​
Nonamiya [84]

Answer:

Rs166.67

Step-by-step explanation:

Let

x -----> amount of money Arun has in his pocket at the beginning

we know that

100%-25%=75%

75%=75/100=0.75

so

The linear equation that represent this situation is

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8 0
3 years ago
What is 5x-4y=-7 (-20,-8)in slope intercept form
forsale [732]

For this case we have that by definition, the equation of the line of the slope-intersection form is given by:

y = mx + b

Where:

m: It is the slope of the line

b: It is the cut-off point with the y axis

We have the following equation:

5x-4y = -7

We manipulate algebraically to write the equation of the slope-intersection form:

-4y = -7-5x\\4y = 5x + 7\\y = \frac {5} {4} x + \frac {7} {4}

We check if the given point belongs to the equation:

y = \frac {5} {4} (- 20) + \frac {7} {4}\\y = -25 + \frac {7} {4}\\y = \frac {-100 + 7} {4}\\y = - \frac {93} {4}

The point does not belong to the equation.

ANswer:

y = \frac {5} {4} x + \frac {7} {4}

4 0
3 years ago
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